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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:46:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:46:48 +0000 |
commit | 311bcfc6b3acdd6fd152798c7f287ddf74fa2a98 (patch) | |
tree | 0ec307299b1dada3701e42f4ca6eda57d708261e /doc/src/sgml/html/infoschema-transforms.html | |
parent | Initial commit. (diff) | |
download | postgresql-15-311bcfc6b3acdd6fd152798c7f287ddf74fa2a98.tar.xz postgresql-15-311bcfc6b3acdd6fd152798c7f287ddf74fa2a98.zip |
Adding upstream version 15.4.upstream/15.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/src/sgml/html/infoschema-transforms.html')
-rw-r--r-- | doc/src/sgml/html/infoschema-transforms.html | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/doc/src/sgml/html/infoschema-transforms.html b/doc/src/sgml/html/infoschema-transforms.html new file mode 100644 index 0000000..582e125 --- /dev/null +++ b/doc/src/sgml/html/infoschema-transforms.html @@ -0,0 +1,55 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>37.55. transforms</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="infoschema-tables.html" title="37.54. tables" /><link rel="next" href="infoschema-triggered-update-columns.html" title="37.56. triggered_update_columns" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">37.55. <code class="literal">transforms</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="infoschema-tables.html" title="37.54. tables">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="information-schema.html" title="Chapter 37. The Information Schema">Up</a></td><th width="60%" align="center">Chapter 37. The Information Schema</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="infoschema-triggered-update-columns.html" title="37.56. triggered_update_columns">Next</a></td></tr></table><hr /></div><div class="sect1" id="INFOSCHEMA-TRANSFORMS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">37.55. <code class="literal">transforms</code></h2></div></div></div><p> + The view <code class="literal">transforms</code> contains information about the + transforms defined in the current database. More precisely, it contains a + row for each function contained in a transform (the <span class="quote">“<span class="quote">from SQL</span>”</span> + or <span class="quote">“<span class="quote">to SQL</span>”</span> function). + </p><div class="table" id="id-1.7.6.59.3"><p class="title"><strong>Table 37.53. <code class="structname">transforms</code> Columns</strong></p><div class="table-contents"><table class="table" summary="transforms Columns" border="1"><colgroup><col /></colgroup><thead><tr><th class="catalog_table_entry"><p class="column_definition"> + Column Type + </p> + <p> + Description + </p></th></tr></thead><tbody><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">udt_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the database that contains the type the transform is for (always the current database) + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">udt_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the schema that contains the type the transform is for + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">udt_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the type the transform is for + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">specific_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the database containing the function (always the current database) + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">specific_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the schema containing the function + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">specific_name</code> <code class="type">sql_identifier</code> + </p> + <p> + The <span class="quote">“<span class="quote">specific name</span>”</span> of the function. See <a class="xref" href="infoschema-routines.html" title="37.45. routines">Section 37.45</a> for more information. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">group_name</code> <code class="type">sql_identifier</code> + </p> + <p> + The SQL standard allows defining transforms in <span class="quote">“<span class="quote">groups</span>”</span>, + and selecting a group at run time. PostgreSQL does not support this. + Instead, transforms are specific to a language. As a compromise, this + field contains the language the transform is for. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">transform_type</code> <code class="type">character_data</code> + </p> + <p> + <code class="literal">FROM SQL</code> or <code class="literal">TO SQL</code> + </p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="infoschema-tables.html" title="37.54. tables">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="information-schema.html" title="Chapter 37. The Information Schema">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="infoschema-triggered-update-columns.html" title="37.56. triggered_update_columns">Next</a></td></tr><tr><td width="40%" align="left" valign="top">37.54. <code class="literal">tables</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 37.56. <code class="literal">triggered_update_columns</code></td></tr></table></div></body></html>
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