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diff --git a/doc/src/sgml/html/infoschema-domains.html b/doc/src/sgml/html/infoschema-domains.html new file mode 100644 index 0000000..dc53219 --- /dev/null +++ b/doc/src/sgml/html/infoschema-domains.html @@ -0,0 +1,196 @@ +<?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>37.23. domains</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-domain-udt-usage.html" title="37.22. domain_udt_usage" /><link rel="next" href="infoschema-element-types.html" title="37.24. element_types" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">37.23. <code xmlns="http://www.w3.org/1999/xhtml" class="literal">domains</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="infoschema-domain-udt-usage.html" title="37.22. domain_udt_usage">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 14.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="infoschema-element-types.html" title="37.24. element_types">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="INFOSCHEMA-DOMAINS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">37.23. <code class="literal">domains</code></h2></div></div></div><p> + The view <code class="literal">domains</code> contains all domains defined in the + current database. Only those domains are shown that the current user has + access to (by way of being the owner or having some privilege). + </p><div class="table" id="id-1.7.6.27.3"><p class="title"><strong>Table 37.21. <code class="structname">domains</code> Columns</strong></p><div class="table-contents"><table class="table" summary="domains 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">domain_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the database that contains the domain (always the current database) + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">domain_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the schema that contains the domain + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">domain_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the domain + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">data_type</code> <code class="type">character_data</code> + </p> + <p> + Data type of the domain, if it is a built-in type, or + <code class="literal">ARRAY</code> if it is some array (in that case, see + the view <code class="literal">element_types</code>), else + <code class="literal">USER-DEFINED</code> (in that case, the type is + identified in <code class="literal">udt_name</code> and associated + columns). + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">character_maximum_length</code> <code class="type">cardinal_number</code> + </p> + <p> + If the domain has a character or bit string type, the declared + maximum length; null for all other data types or if no maximum + length was declared. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">character_octet_length</code> <code class="type">cardinal_number</code> + </p> + <p> + If the domain has a character type, the maximum possible length + in octets (bytes) of a datum; null for all other data types. + The maximum octet length depends on the declared character + maximum length (see above) and the server encoding. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">character_set_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Applies to a feature not available in <span class="productname">PostgreSQL</span> + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">character_set_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Applies to a feature not available in <span class="productname">PostgreSQL</span> + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">character_set_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Applies to a feature not available in <span class="productname">PostgreSQL</span> + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">collation_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the database containing the collation of the domain + (always the current database), null if default or the data type + of the domain is not collatable + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">collation_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the schema containing the collation of the domain, null + if default or the data type of the domain is not collatable + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">collation_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the collation of the domain, null if default or the + data type of the domain is not collatable + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">numeric_precision</code> <code class="type">cardinal_number</code> + </p> + <p> + If the domain has a numeric type, this column contains the + (declared or implicit) precision of the type for this domain. + The precision indicates the number of significant digits. It + can be expressed in decimal (base 10) or binary (base 2) terms, + as specified in the column + <code class="literal">numeric_precision_radix</code>. For all other data + types, this column is null. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">numeric_precision_radix</code> <code class="type">cardinal_number</code> + </p> + <p> + If the domain has a numeric type, this column indicates in + which base the values in the columns + <code class="literal">numeric_precision</code> and + <code class="literal">numeric_scale</code> are expressed. The value is + either 2 or 10. For all other data types, this column is null. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">numeric_scale</code> <code class="type">cardinal_number</code> + </p> + <p> + If the domain has an exact numeric type, this column contains + the (declared or implicit) scale of the type for this domain. + The scale indicates the number of significant digits to the + right of the decimal point. It can be expressed in decimal + (base 10) or binary (base 2) terms, as specified in the column + <code class="literal">numeric_precision_radix</code>. For all other data + types, this column is null. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">datetime_precision</code> <code class="type">cardinal_number</code> + </p> + <p> + If <code class="literal">data_type</code> identifies a date, time, + timestamp, or interval type, this column contains the (declared + or implicit) fractional seconds precision of the type for this + domain, that is, the number of decimal digits maintained + following the decimal point in the seconds value. For all + other data types, this column is null. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">interval_type</code> <code class="type">character_data</code> + </p> + <p> + If <code class="literal">data_type</code> identifies an interval type, + this column contains the specification which fields the + intervals include for this domain, e.g., <code class="literal">YEAR TO + MONTH</code>, <code class="literal">DAY TO SECOND</code>, etc. If no + field restrictions were specified (that is, the interval + accepts all fields), and for all other data types, this field + is null. + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">interval_precision</code> <code class="type">cardinal_number</code> + </p> + <p> + Applies to a feature not available + in <span class="productname">PostgreSQL</span> + (see <code class="literal">datetime_precision</code> for the fractional + seconds precision of interval type domains) + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">domain_default</code> <code class="type">character_data</code> + </p> + <p> + Default expression of the domain + </p></td></tr><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 the domain data type is defined in (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 the domain data type is defined in + </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 domain data type + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">scope_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Applies to a feature not available in <span class="productname">PostgreSQL</span> + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">scope_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Applies to a feature not available in <span class="productname">PostgreSQL</span> + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">scope_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Applies to a feature not available in <span class="productname">PostgreSQL</span> + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">maximum_cardinality</code> <code class="type">cardinal_number</code> + </p> + <p> + Always null, because arrays always have unlimited maximum cardinality in <span class="productname">PostgreSQL</span> + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">dtd_identifier</code> <code class="type">sql_identifier</code> + </p> + <p> + An identifier of the data type descriptor of the domain, unique + among the data type descriptors pertaining to the domain (which + is trivial, because a domain only contains one data type + descriptor). This is mainly useful for joining with other + instances of such identifiers. (The specific format of the + identifier is not defined and not guaranteed to remain the same + in future versions.) + </p></td></tr></tbody></table></div></div><br class="table-break" /></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="infoschema-domain-udt-usage.html" title="37.22. domain_udt_usage">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="information-schema.html" title="Chapter 37. 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