Adding upstream version 2:9.1.0016.upstream/2%9.1.0016

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 780 insertions, 0 deletions

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+*ft_sql.txt*	For Vim version 9.1.  Last change: 2022 Apr 06
+
+by David Fishburn
+
+This is a filetype plugin to work with SQL files.
+
+The Structured Query Language (SQL) is a standard which specifies statements
+that allow a user to interact with a relational database.  Vim includes
+features for navigation, indentation and syntax highlighting.
+
+1. Navigation					|sql-navigation|
+    1.1 Matchit					|sql-matchit|
+    1.2 Text Object Motions			|sql-object-motions|
+    1.3 Predefined Object Motions		|sql-predefined-objects|
+    1.4 Macros					|sql-macros|
+2. SQL Dialects					|sql-dialects|
+    2.1 SQLSetType				|SQLSetType|
+    2.2 SQLGetType				|SQLGetType|
+    2.3 SQL Dialect Default			|sql-type-default|
+3. Adding new SQL Dialects			|sql-adding-dialects|
+4. OMNI SQL Completion				|sql-completion|
+    4.1 Static mode				|sql-completion-static|
+    4.2 Dynamic mode				|sql-completion-dynamic|
+    4.3 Tutorial				|sql-completion-tutorial|
+	4.3.1 Complete Tables			|sql-completion-tables|
+	4.3.2 Complete Columns			|sql-completion-columns|
+	4.3.3 Complete Procedures		|sql-completion-procedures|
+	4.3.4 Complete Views			|sql-completion-views|
+    4.4 Completion Customization		|sql-completion-customization|
+    4.5 SQL Maps				|sql-completion-maps|
+    4.6 Using with other filetypes		|sql-completion-filetypes|
+
+==============================================================================
+1. Navigation					*sql-navigation*
+
+The SQL ftplugin provides a number of options to assist with file
+navigation.
+
+
+1.1 Matchit					*sql-matchit*
+-----------
+The matchit plugin (http://www.vim.org/scripts/script.php?script_id=39)
+provides many additional features and can be customized for different
+languages.  The matchit plugin is configured by defining a local
+buffer variable, b:match_words.  Pressing the % key while on various
+keywords will move the cursor to its match.  For example, if the cursor
+is on an "if", pressing % will cycle between the "else", "elseif" and
+"end if" keywords.
+
+The following keywords are supported: >
+    if
+    elseif | elsif
+    else [if]
+    end if
+
+    [while condition] loop
+	leave
+	break
+	continue
+	exit
+    end loop
+
+    for
+	leave
+	break
+	continue
+	exit
+    end loop
+
+    do
+	statements
+    doend
+
+    case
+    when
+    when
+    default
+    end case
+
+    merge
+    when not matched
+    when matched
+
+    create[ or replace] procedure|function|event
+    returns
+
+
+1.2 Text Object Motions				*sql-object-motions*
+-----------------------
+Vim has a number of predefined keys for working with text |object-motions|.
+This filetype plugin attempts to translate these keys to maps which make sense
+for the SQL language.
+
+The following |Normal| mode and |Visual| mode maps exist (when you edit a SQL
+file): >
+    ]]		    move forward to the next 'begin'
+    [[		    move backwards to the previous 'begin'
+    ][		    move forward to the next 'end'
+    []		    move backwards to the previous 'end'
+
+
+1.3 Predefined Object Motions			*sql-predefined-objects*
+-----------------------------
+Most relational databases support various standard features, tables, indices,
+triggers and stored procedures.  Each vendor also has a variety of proprietary
+objects.  The next set of maps have been created to help move between these
+objects.  Depends on which database vendor you are using, the list of objects
+must be configurable.  The filetype plugin attempts to define many of the
+standard objects, plus many additional ones.  In order to make this as
+flexible as possible, you can override the list of objects from within your
+|vimrc| with the following: >
+    let g:ftplugin_sql_objects = 'function,procedure,event,table,trigger' ..
+		\ ',schema,service,publication,database,datatype,domain' ..
+		\ ',index,subscription,synchronization,view,variable'
+
+The following |Normal| mode and |Visual| mode maps have been created which use
+the above list: >
+    ]}		    move forward to the next 'create <object name>'
+    [{		    move backward to the previous 'create <object name>'
+
+Repeatedly pressing ]} will cycle through each of these create statements: >
+    create table t1 (
+	...
+    );
+
+    create procedure p1
+    begin
+	...
+    end;
+
+    create index i1 on t1 (c1);
+
+The default setting for g:ftplugin_sql_objects is: >
+    let g:ftplugin_sql_objects = 'function,procedure,event,' ..
+		\ '\\(existing\\\\|global\\s\\+temporary\\s\\+\\)\\\{,1}' ..
+		\ 'table,trigger' ..
+		\ ',schema,service,publication,database,datatype,domain' ..
+		\ ',index,subscription,synchronization,view,variable'
+
+The above will also handle these cases: >
+    create table t1 (
+	...
+    );
+    create existing table t2 (
+	...
+    );
+    create global temporary table t3 (
+	...
+    );
+
+By default, the ftplugin only searches for CREATE statements.  You can also
+override this via your |vimrc| with the following: >
+    let g:ftplugin_sql_statements = 'create,alter'
+
+The filetype plugin defines three types of comments: >
+    1.  --
+    2.  //
+    3.  /*
+	 *
+	 */
+
+The following |Normal| mode and |Visual| mode maps have been created to work
+with comments: >
+    ]"		    move forward to the beginning of a comment
+    ["		    move forward to the end of a comment
+
+
+
+1.4 Macros					   *sql-macros*
+----------
+Vim's feature to find macro definitions, |'define'|, is supported using this
+regular expression: >
+    \c\<\(VARIABLE\|DECLARE\|IN\|OUT\|INOUT\)\>
+
+This addresses the following code: >
+    CREATE VARIABLE myVar1 INTEGER;
+
+    CREATE PROCEDURE sp_test(
+	IN myVar2 INTEGER,
+	OUT myVar3 CHAR(30),
+	INOUT myVar4 NUMERIC(20,0)
+    )
+    BEGIN
+	DECLARE myVar5 INTEGER;
+
+	SELECT c1, c2, c3
+	  INTO myVar2, myVar3, myVar4
+	  FROM T1
+	 WHERE c4 = myVar1;
+    END;
+
+Place your cursor on "myVar1" on this line: >
+	 WHERE c4 = myVar1;
+		     ^
+
+Press any of the following keys: >
+    [d
+    [D
+    [CTRL-D
+
+
+==============================================================================
+2. SQL Dialects					*sql-dialects* *sql-types*
+						*sybase* *TSQL* *Transact-SQL*
+						*sqlanywhere*
+						*oracle* *plsql* *sqlj*
+						*sqlserver*
+						*mysql* *postgresql* *psql*
+						*informix*
+
+All relational databases support SQL.  There is a portion of SQL that is
+portable across vendors (ex. CREATE TABLE, CREATE INDEX), but there is a
+great deal of vendor specific extensions to SQL.  Oracle supports the
+"CREATE OR REPLACE" syntax, column defaults specified in the CREATE TABLE
+statement and the procedural language (for stored procedures and triggers).
+
+The default Vim distribution ships with syntax highlighting based on Oracle's
+PL/SQL.  The default SQL indent script works for Oracle and SQL Anywhere.
+The default filetype plugin works for all vendors and should remain vendor
+neutral, but extendable.
+
+Vim currently has support for a variety of different vendors, currently this
+is via syntax scripts. Unfortunately, to flip between different syntax rules
+you must either create:
+    1.  New filetypes
+    2.  Custom autocmds
+    3.  Manual steps / commands
+
+The majority of people work with only one vendor's database product, it would
+be nice to specify a default in your |vimrc|.
+
+
+2.1 SQLSetType					*sqlsettype* *SQLSetType*
+--------------
+For the people that work with many different databases, it is nice to be
+able to flip between the various vendors rules (indent, syntax) on a per
+buffer basis, at any time.  The ftplugin/sql.vim file defines this function: >
+    SQLSetType
+
+Executing this function without any parameters will set the indent and syntax
+scripts back to their defaults, see |sql-type-default|.  If you have turned
+off Vi's compatibility mode, |'compatible'|, you can use the <Tab> key to
+complete the optional parameter.
+
+After typing the function name and a space, you can use the completion to
+supply a parameter.  The function takes the name of the Vim script you want to
+source.  Using the |cmdline-completion| feature, the SQLSetType function will
+search the |'runtimepath'| for all Vim scripts with a name containing 'sql'.
+This takes the guess work out of the spelling of the names.  The following are
+examples: >
+    :SQLSetType
+    :SQLSetType sqloracle
+    :SQLSetType sqlanywhere
+    :SQLSetType sqlinformix
+    :SQLSetType mysql
+
+The easiest approach is to the use <Tab> character which will first complete
+the command name (SQLSetType), after a space and another <Tab>, display a list
+of available Vim script names: >
+    :SQL<Tab><space><Tab>
+
+
+2.2 SQLGetType					*sqlgettype* *SQLGetType*
+--------------
+At anytime you can determine which SQL dialect you are using by calling the
+SQLGetType command.  The ftplugin/sql.vim file defines this function: >
+    SQLGetType
+
+This will echo: >
+    Current SQL dialect in use:sqlanywhere
+
+
+2.3 SQL Dialect Default				*sql-type-default*
+-----------------------
+As mentioned earlier, the default syntax rules for Vim is based on Oracle
+(PL/SQL).  You can override this default by placing one of the following in
+your |vimrc|: >
+    let g:sql_type_default = 'sqlanywhere'
+    let g:sql_type_default = 'sqlinformix'
+    let g:sql_type_default = 'mysql'
+
+If you added the following to your |vimrc|: >
+    let g:sql_type_default = 'sqlinformix'
+
+The next time edit a SQL file the following scripts will be automatically
+loaded by Vim: >
+    ftplugin/sql.vim
+    syntax/sqlinformix.vim
+    indent/sql.vim
+>
+Notice indent/sqlinformix.sql was not loaded.  There is no indent file
+for Informix, Vim loads the default files if the specified files does not
+exist.
+
+
+==============================================================================
+3. Adding new SQL Dialects			*sql-adding-dialects*
+
+If you begin working with a SQL dialect which does not have any customizations
+available with the default Vim distribution you can check http://www.vim.org
+to see if any customization currently exist.  If not, you can begin by cloning
+an existing script.  Read |filetype-plugins| for more details.
+
+To help identify these scripts, try to create the files with a "sql" prefix.
+If you decide you wish to create customizations for the SQLite database, you
+can create any of the following: >
+    Unix
+	~/.vim/syntax/sqlite.vim
+	~/.vim/indent/sqlite.vim
+    Windows
+	$VIM/vimfiles/syntax/sqlite.vim
+	$VIM/vimfiles/indent/sqlite.vim
+
+No changes are necessary to the SQLSetType function.  It will automatically
+pick up the new SQL files and load them when you issue the SQLSetType command.
+
+
+==============================================================================
+4. OMNI SQL Completion				*sql-completion*
+						*omni-sql-completion*
+
+Vim 7 includes a code completion interface and functions which allows plugin
+developers to build in code completion for any language.  Vim 7 includes
+code completion for the SQL language.
+
+There are two modes to the SQL completion plugin, static and dynamic.  The
+static mode populates the popups with the data generated from current syntax
+highlight rules.  The dynamic mode populates the popups with data retrieved
+directly from a database.  This includes, table lists, column lists,
+procedures names and more.
+
+4.1 Static Mode					*sql-completion-static*
+---------------
+The static popups created contain items defined by the active syntax rules
+while editing a file with a filetype of SQL.  The plugin defines (by default)
+various maps to help the user refine the list of items to be displayed.
+The defaults static maps are: >
+    imap <buffer> <C-C>a <C-\><C-O>:call sqlcomplete#Map('syntax')<CR><C-X><C-O>
+    imap <buffer> <C-C>k <C-\><C-O>:call sqlcomplete#Map('sqlKeyword')<CR><C-X><C-O>
+    imap <buffer> <C-C>f <C-\><C-O>:call sqlcomplete#Map('sqlFunction')<CR><C-X><C-O>
+    imap <buffer> <C-C>o <C-\><C-O>:call sqlcomplete#Map('sqlOption')<CR><C-X><C-O>
+    imap <buffer> <C-C>T <C-\><C-O>:call sqlcomplete#Map('sqlType')<CR><C-X><C-O>
+    imap <buffer> <C-C>s <C-\><C-O>:call sqlcomplete#Map('sqlStatement')<CR><C-X><C-O>
+
+The use of "<C-C>" can be user chosen by using the following in your |.vimrc|
+as it may not work properly on all platforms: >
+    let g:ftplugin_sql_omni_key = '<C-C>'
+>
+The static maps (which are based on the syntax highlight groups) follow this
+format: >
+    imap <buffer> <C-C>k <C-\><C-O>:call sqlcomplete#Map('sqlKeyword')<CR><C-X><C-O>
+    imap <buffer> <C-C>k <C-\><C-O>:call sqlcomplete#Map('sqlKeyword\w*')<CR><C-X><C-O>
+
+This command breaks down as: >
+    imap		   - Create an insert map
+    <buffer>		   - Only for this buffer
+    <C-C>k		   - Your choice of key map
+    <C-\><C-O>		   - Execute one command, return to Insert mode
+    :call sqlcomplete#Map( - Allows the SQL completion plugin to perform some
+			     housekeeping functions to allow it to be used in
+			     conjunction with other completion plugins.
+			     Indicate which item you want the SQL completion
+			     plugin to complete.
+			     In this case we are asking the plugin to display
+			     items from the syntax highlight group
+			     'sqlKeyword'.
+			     You can view a list of highlight group names to
+			     choose from by executing the
+				 :syntax list
+			     command while editing a SQL file.
+    'sqlKeyword'	   - Display the items for the sqlKeyword highlight
+			     group
+    'sqlKeyword\w*'	   - A second option available with Vim 7.4 which
+                             uses a regular expression to determine which
+			     syntax groups to use
+    )<CR>		   - Execute the :let command
+    <C-X><C-O>		   - Trigger the standard omni completion key stroke.
+			     Passing in 'sqlKeyword' instructs the SQL
+			     completion plugin to populate the popup with
+			     items from the sqlKeyword highlight group.  The
+			     plugin will also cache this result until Vim is
+			     restarted.  The syntax list is retrieved using
+			     the syntaxcomplete plugin.
+
+Using the 'syntax' keyword is a special case.  This instructs the
+syntaxcomplete plugin to retrieve all syntax items.  So this will effectively
+work for any of Vim's SQL syntax files.  At the time of writing this includes
+10 different syntax files for the different dialects of SQL (see section 3
+above, |sql-dialects|).
+
+Here are some examples of the entries which are pulled from the syntax files: >
+     All
+	 - Contains the contents of all syntax highlight groups
+     Statements
+	 - Select, Insert, Update, Delete, Create, Alter, ...
+     Functions
+	 - Min, Max, Trim, Round, Date, ...
+     Keywords
+	 - Index, Database, Having, Group, With
+     Options
+	 - Isolation_level, On_error, Qualify_owners, Fire_triggers, ...
+     Types
+	 - Integer, Char, Varchar, Date, DateTime, Timestamp, ...
+
+
+4.2 Dynamic Mode				*sql-completion-dynamic*
+----------------
+Dynamic mode populates the popups with data directly from a database.  In
+order for the dynamic feature to be enabled you must have the dbext.vim
+plugin installed, (http://vim.sourceforge.net/script.php?script_id=356).
+
+Dynamic mode is used by several features of the SQL completion plugin.
+After installing the dbext plugin see the dbext-tutorial for additional
+configuration and usage.  The dbext plugin allows the SQL completion plugin
+to display a list of tables, procedures, views and columns. >
+     Table List
+	 - All tables for all schema owners
+     Procedure List
+	 - All stored procedures for all schema owners
+     View List
+	 - All stored procedures for all schema owners
+     Column List
+	 - For the selected table, the columns that are part of the table
+
+To enable the popup, while in INSERT mode, use the following key combinations
+for each group (where <C-C> means hold the CTRL key down while pressing
+the space bar):
+     Table List		   - <C-C>t
+			   - <C-X><C-O> (the default map assumes tables)
+     Stored Procedure List - <C-C>p
+     View List		   - <C-C>v
+     Column List	   - <C-C>c
+
+     Drilling In / Out     - When viewing a popup window displaying the list
+			     of tables, you can press <Right>, this will
+			     replace the table currently highlighted with
+			     the column list for that table.
+			   - When viewing a popup window displaying the list
+			     of columns, you can press <Left>, this will
+			     replace the column list with the list of tables.
+			   - This allows you to quickly drill down into a
+			     table to view its columns and back again.
+			   - <Right> and <Left> can also be chosen via
+			     your |.vimrc| >
+                                let g:ftplugin_sql_omni_key_right = '<Right>'
+                                let g:ftplugin_sql_omni_key_left  = '<Left>'
+
+The SQL completion plugin caches various lists that are displayed in
+the popup window.  This makes the re-displaying of these lists very
+fast.  If new tables or columns are added to the database it may become
+necessary to clear the plugins cache.  The default map for this is: >
+    imap <buffer> <C-C>R <C-\><C-O>:call sqlcomplete#Map('ResetCache')<CR><C-X><C-O>
+
+
+4.3 SQL Tutorial				*sql-completion-tutorial*
+----------------
+
+This tutorial is designed to take you through the common features of the SQL
+completion plugin so that: >
+     a) You gain familiarity with the plugin
+     b) You are introduced to some of the more common features
+     c) Show how to customize it to your preferences
+     d) Demonstrate "Best of Use" of the plugin (easiest way to configure).
+
+First, create a new buffer: >
+     :e tutorial.sql
+
+
+Static features
+---------------
+To take you through the various lists, simply enter insert mode, hit:
+    <C-C>s   (show SQL statements)
+At this point, you can page down through the list until you find "select".
+If you are familiar with the item you are looking for, for example you know
+the statement begins with the letter "s".  You can type ahead (without the
+quotes) "se" then press:
+    <C-Space>t
+Assuming "select" is highlighted in the popup list press <Enter> to choose
+the entry.  Now type:
+    * fr<C-C>a (show all syntax items)
+choose "from" from the popup list.
+
+When writing stored procedures using the "type" list is useful.  It contains
+a list of all the database supported types.  This may or may not be true
+depending on the syntax file you are using.  The SQL Anywhere syntax file
+(sqlanywhere.vim) has support for this: >
+     BEGIN
+	DECLARE customer_id <C-C>T <-- Choose a type from the list
+
+
+Dynamic features
+----------------
+To take advantage of the dynamic features you must first install the
+dbext.vim plugin (http://vim.sourceforge.net/script.php?script_id=356).  It
+also comes with a tutorial.  From the SQL completion plugin's perspective,
+the main feature dbext provides is a connection to a database.  dbext
+connection profiles are the most efficient mechanism to define connection
+information.  Once connections have been setup, the SQL completion plugin
+uses the features of dbext in the background to populate the popups.
+
+What follows assumes dbext.vim has been correctly configured, a simple test
+is to run the command, :DBListTable.  If a list of tables is shown, you know
+dbext.vim is working as expected.  If not, please consult the dbext.txt
+documentation.
+
+Assuming you have followed the dbext-tutorial you can press <C-C>t to
+display a list of tables.  There is a delay while dbext is creating the table
+list.  After the list is displayed press <C-W>.  This will remove both the
+popup window and the table name already chosen when the list became active.
+
+ 4.3.1 Table Completion:			*sql-completion-tables*
+
+Press <C-C>t to display a list of tables from within the database you
+have connected via the dbext plugin.
+NOTE: All of the SQL completion popups support typing a prefix before pressing
+the key map.  This will limit the contents of the popup window to just items
+beginning with those characters.
+
+ 4.3.2 Column Completion:			*sql-completion-columns*
+
+The SQL completion plugin can also display a list of columns for particular
+tables.  The column completion is triggered via <C-C>c.
+
+NOTE: The following example uses <Right> to trigger a column list while
+      the popup window is active.
+
+Example of using column completion:
+     - Press <C-C>t again to display the list of tables.
+     - When the list is displayed in the completion window, press <Right>,
+       this will replace the list of tables, with a list of columns for the
+       table highlighted (after the same short delay).
+     - If you press <Left>, this will again replace the column list with the
+       list of tables.  This allows you to drill into tables and column lists
+       very quickly.
+     - Press <Right> again while the same table is highlighted.  You will
+       notice there is no delay since the column list has been cached.  If you
+       change the schema of a cached table you can press <C-C>R, which
+       clears the SQL completion cache.
+     - NOTE: <Right> and <Left> have been designed to work while the
+       completion window is active.  If the completion popup window is
+       not active, a normal <Right> or <Left> will be executed.
+
+Let's look at how we can build a SQL statement dynamically.  A select statement
+requires a list of columns.  There are two ways to build a column list using
+the SQL completion plugin. >
+    One column at a time:
+<       1. After typing SELECT press <C-C>t to display a list of tables.
+	2. Choose a table from the list.
+	3. Press <Right> to display a list of columns.
+	4. Choose the column from the list and press enter.
+	5. Enter a "," and press <C-C>c.  Generating a column list
+	   generally requires having the cursor on a table name.  The plugin
+	   uses this name to determine what table to retrieve the column list.
+	   In this step, since we are pressing <C-C>c without the cursor
+	   on a table name the column list displayed will be for the previous
+	   table.  Choose a different column and move on.
+	6. Repeat step 5 as often as necessary. >
+    All columns for a table:
+<	1. After typing SELECT press <C-C>t to display a list of tables.
+	2. Highlight the table you need the column list for.
+	3. Press <Enter> to choose the table from the list.
+	4. Press <C-C>l to request a comma-separated list of all columns
+	   for this table.
+	5. Based on the table name chosen in step 3, the plugin attempts to
+	   decide on a reasonable table alias.	You are then prompted to
+	   either accept of change the alias.  Press OK.
+	6. The table name is replaced with the column list of the table is
+	   replaced with the comma separate list of columns with the alias
+	   prepended to each of the columns.
+	7. Step 3 and 4 can be replaced by pressing <C-C>L, which has
+	   a <C-Y> embedded in the map to choose the currently highlighted
+	   table in the list.
+
+There is a special provision when writing select statements.  Consider the
+following statement: >
+     select *
+       from customer c,
+	    contact cn,
+	    department as dp,
+	    employee e,
+	    site_options so
+      where c.
+
+In INSERT mode after typing the final "c." which is an alias for the
+"customer" table, you can press either <C-C>c or <C-X><C-O>.  This will
+popup a list of columns for the customer table.  It does this by looking back
+to the beginning of the select statement and finding a list of the tables
+specified in the FROM clause.  In this case it notes that in the string
+"customer c", "c" is an alias for the customer table.  The optional "AS"
+keyword is also supported, "customer AS c".
+
+
+ 4.3.3 Procedure Completion:			*sql-completion-procedures*
+
+Similar to the table list, <C-C>p, will display a list of stored
+procedures stored within the database.
+
+ 4.3.4 View Completion:				*sql-completion-views*
+
+Similar to the table list, <C-C>v, will display a list of views in the
+database.
+
+
+4.4 Completion Customization			*sql-completion-customization*
+----------------------------
+
+The SQL completion plugin can be customized through various options set in
+your |vimrc|: >
+    omni_sql_no_default_maps
+<       - Default: This variable is not defined
+	- If this variable is defined, no maps are created for OMNI
+	  completion.  See |sql-completion-maps| for further discussion.
+>
+    omni_sql_use_tbl_alias
+<	- Default: a
+	- This setting is only used when generating a comma-separated
+	  column list.	By default the map is <C-C>l.  When generating
+	  a column list, an alias can be prepended to the beginning of each
+	  column, for example:	e.emp_id, e.emp_name.  This option has three
+	  settings: >
+		n - do not use an alias
+		d - use the default (calculated) alias
+		a - ask to confirm the alias name
+<
+	  An alias is determined following a few rules:
+	       1.  If the table name has an '_', then use it as a separator: >
+		   MY_TABLE_NAME --> MTN
+		   my_table_name --> mtn
+		   My_table_NAME --> MtN
+<	       2.  If the table name does NOT contain an '_', but DOES use
+		   mixed case then the case is used as a separator: >
+		   MyTableName --> MTN
+<	       3.  If the table name does NOT contain an '_', and does NOT
+		   use mixed case then the first letter of the table is used: >
+		   mytablename --> m
+		   MYTABLENAME --> M
+
+    omni_sql_ignorecase
+<	- Default: Current setting for 'ignorecase'
+	- Valid settings are 0 or 1.
+	- When entering a few letters before initiating completion, the list
+	  will be filtered to display only the entries which begin with the
+	  list of characters.  When this option is set to 0, the list will be
+	  filtered using case sensitivity. >
+
+    omni_sql_include_owner
+<	- Default: 0, unless dbext.vim 3.00 has been installed
+	- Valid settings are 0 or 1.
+	- When completing tables, procedure or views and using dbext.vim 3.00
+	  or higher the list of objects will also include the owner name.
+	  When completing these objects and omni_sql_include_owner is enabled
+	  the owner name will be replaced. >
+
+    omni_sql_precache_syntax_groups
+<	- Default:
+	  ['syntax','sqlKeyword','sqlFunction','sqlOption','sqlType','sqlStatement']
+	- sqlcomplete can be used in conjunction with other completion
+	  plugins.  This is outlined at |sql-completion-filetypes|.  When the
+	  filetype is changed temporarily to SQL, the sqlcompletion plugin
+	  will cache the syntax groups listed in the List specified in this
+	  option.
+>
+
+4.5 SQL Maps					*sql-completion-maps*
+------------
+
+The default SQL maps have been described in other sections of this document in
+greater detail.  Here is a list of the maps with a brief description of each.
+
+Static Maps
+-----------
+These are maps which use populate the completion list using Vim's syntax
+highlighting rules. >
+    <C-C>a
+<       - Displays all SQL syntax items. >
+    <C-C>k
+<       - Displays all SQL syntax items defined as 'sqlKeyword'. >
+    <C-C>f
+<       - Displays all SQL syntax items defined as 'sqlFunction. >
+    <C-C>o
+<       - Displays all SQL syntax items defined as 'sqlOption'. >
+    <C-C>T
+<       - Displays all SQL syntax items defined as 'sqlType'. >
+    <C-C>s
+<       - Displays all SQL syntax items defined as 'sqlStatement'. >
+
+Dynamic Maps
+------------
+These are maps which use populate the completion list using the dbext.vim
+plugin. >
+    <C-C>t
+<       - Displays a list of tables. >
+    <C-C>p
+<       - Displays a list of procedures. >
+    <C-C>v
+<       - Displays a list of views. >
+    <C-C>c
+<       - Displays a list of columns for a specific table. >
+    <C-C>l
+<       - Displays a comma-separated list of columns for a specific table. >
+    <C-C>L
+<       - Displays a comma-separated list of columns for a specific table.
+	  This should only be used when the completion window is active. >
+    <Right>
+<	- Displays a list of columns for the table currently highlighted in
+	  the completion window.  <Right> is not recognized on most Unix
+	  systems, so this maps is only created on the Windows platform.
+	  If you would like the same feature on Unix, choose a different key
+	  and make the same map in your vimrc. >
+    <Left>
+<	- Displays the list of tables.
+	  <Left> is not recognized on most Unix systems, so this maps is
+	  only created on the Windows platform.  If you would like the same
+	  feature on Unix, choose a different key and make the same map in
+	  your vimrc. >
+    <C-C>R
+<	- This maps removes all cached items and forces the SQL completion
+	  to regenerate the list of items.
+
+Customizing Maps
+----------------
+You can create as many additional key maps as you like.  Generally, the maps
+will be specifying different syntax highlight groups.
+
+If you do not wish the default maps created or the key choices do not work on
+your platform (often a case on *nix) you define the following variable in
+your |vimrc|: >
+    let g:omni_sql_no_default_maps = 1
+
+Do not edit ftplugin/sql.vim directly!  If you change this file your changes
+will be over written on future updates.  Vim has a special directory structure
+which allows you to make customizations without changing the files that are
+included with the Vim distribution.  If you wish to customize the maps
+create an after/ftplugin/sql.vim (see |after-directory|) and place the same
+maps from the ftplugin/sql.vim in it using your own key strokes.  <C-C> was
+chosen since it will work on both Windows and *nix platforms.  On the windows
+platform you can also use <C-Space> or ALT keys.
+
+
+4.6 Using with other filetypes			*sql-completion-filetypes*
+------------------------------
+
+Many times SQL can be used with different filetypes.  For example Perl, Java,
+PHP, Javascript can all interact with a database.  Often you need both the SQL
+completion and the completion capabilities for the current language you are
+editing.
+
+This can be enabled easily with the following steps (assuming a Perl file): >
+    1.  :e test.pl
+    2.  :set filetype=sql
+    3.  :set ft=perl
+
+Step 1
+------
+Begins by editing a Perl file.  Vim automatically sets the filetype to
+"perl".  By default, Vim runs the appropriate filetype file
+ftplugin/perl.vim.  If you are using the syntax completion plugin by following
+the directions at |ft-syntax-omni| then the |'omnifunc'| option has been set to
+"syntax#Complete".  Pressing <C-X><C-O> will display the omni popup containing
+the syntax items for Perl.
+
+Step 2
+------
+Manually setting the filetype to 'sql' will also fire the appropriate filetype
+files ftplugin/sql.vim.  This file will define a number of buffer specific
+maps for SQL completion, see |sql-completion-maps|.  Now these maps have
+been created and the SQL completion plugin has been initialized.  All SQL
+syntax items have been cached in preparation.  The SQL filetype script detects
+we are attempting to use two different completion plugins.  Since the SQL maps
+begin with <C-C>, the maps will toggle the |'omnifunc'| when in use.  So you
+can use <C-X><C-O> to continue using the completion for Perl (using the syntax
+completion plugin) and <C-C> to use the SQL completion features.
+
+Step 3
+------
+Setting the filetype back to Perl sets all the usual "perl" related items back
+as they were.
+
+
+vim:tw=78:ts=8:noet:ft=help:norl: