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Fix and clarify information schema interval_precision fields

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The fields were previously wrongly typed as character_data; change to
cardinal_number.  Update the documentation and the implementation to
show more clearly that this applies to a feature not available in
PostgreSQL, rather than just not yet being implemented in the
information schema.
This commit is contained in:
Peter Eisentraut 2011-07-11 18:49:44 +03:00
parent 75726307e6
commit 3315020a09
2 changed files with 34 additions and 19 deletions
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37
doc/src/sgml/information_schema.sgml
View File

@ -488,8 +488,13 @@
<row>
<entry><literal>interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry>Not yet implemented</entry>
<entry><type>cardinal_number</type></entry>
<entry>
Applies to a feature not available
in <productname>PostgreSQL</productname>
(see <literal>datetime_precision</literal> for the fractional
seconds precision of interval type attributes)
</entry>
</row>
<row>
@ -1343,8 +1348,13 @@
<row>
<entry><literal>interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry>Not yet implemented</entry>
<entry><type>cardinal_number</type></entry>
<entry>
Applies to a feature not available
in <productname>PostgreSQL</productname>
(see <literal>datetime_precision</literal> for the fractional
seconds precision of interval type columns)
</entry>
</row>
<row>
@ -2139,8 +2149,13 @@
<row>
<entry><literal>interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry>Not yet implemented</entry>
<entry><type>cardinal_number</type></entry>
<entry>
Applies to a feature not available
in <productname>PostgreSQL</productname>
(see <literal>datetime_precision</literal> for the fractional
seconds precision of interval type domains)
</entry>
</row>
<row>
@ -2400,7 +2415,7 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry><type>cardinal_number</type></entry>
<entry>Always null, since this information is not applied to array element data types in <productname>PostgreSQL</></entry>
</row>
@ -3150,7 +3165,7 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry><type>cardinal_number</type></entry>
<entry>Always null, since this information is not applied to parameter data types in <productname>PostgreSQL</></entry>
</row>
@ -4037,7 +4052,7 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry><type>cardinal_number</type></entry>
<entry>Always null, since this information is not applied to return data types in <productname>PostgreSQL</></entry>
</row>
@ -4369,7 +4384,7 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>result_cast_interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry><type>cardinal_number</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
</row>
@ -6008,7 +6023,7 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>interval_precision</literal></entry>
<entry><type>character_data</type></entry>
<entry><type>cardinal_number</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
</row>

16
src/backend/catalog/information_schema.sql
View File

@ -322,7 +322,7 @@ CREATE VIEW attributes AS
AS datetime_precision,
CAST(null AS character_data) AS interval_type, -- FIXME
CAST(null AS character_data) AS interval_precision, -- FIXME
CAST(null AS cardinal_number) AS interval_precision,
CAST(current_database() AS sql_identifier) AS attribute_udt_catalog,
CAST(nt.nspname AS sql_identifier) AS attribute_udt_schema,
@ -671,7 +671,7 @@ CREATE VIEW columns AS
AS datetime_precision,
CAST(null AS character_data) AS interval_type, -- FIXME
CAST(null AS character_data) AS interval_precision, -- FIXME
CAST(null AS cardinal_number) AS interval_precision,
CAST(null AS sql_identifier) AS character_set_catalog,
CAST(null AS sql_identifier) AS character_set_schema,
@ -937,7 +937,7 @@ CREATE VIEW domains AS
AS datetime_precision,
CAST(null AS character_data) AS interval_type, -- FIXME
CAST(null AS character_data) AS interval_precision, -- FIXME
CAST(null AS cardinal_number) AS interval_precision,
CAST(t.typdefault AS character_data) AS domain_default,
@ -1085,7 +1085,7 @@ CREATE VIEW parameters AS
CAST(null AS cardinal_number) AS numeric_scale,
CAST(null AS cardinal_number) AS datetime_precision,
CAST(null AS character_data) AS interval_type,
CAST(null AS character_data) AS interval_precision,
CAST(null AS cardinal_number) AS interval_precision,
CAST(current_database() AS sql_identifier) AS udt_catalog,
CAST(nt.nspname AS sql_identifier) AS udt_schema,
CAST(t.typname AS sql_identifier) AS udt_name,
@ -1353,7 +1353,7 @@ CREATE VIEW routines AS
CAST(null AS cardinal_number) AS numeric_scale,
CAST(null AS cardinal_number) AS datetime_precision,
CAST(null AS character_data) AS interval_type,
CAST(null AS character_data) AS interval_precision,
CAST(null AS cardinal_number) AS interval_precision,
CAST(current_database() AS sql_identifier) AS type_udt_catalog,
CAST(nt.nspname AS sql_identifier) AS type_udt_schema,
CAST(t.typname AS sql_identifier) AS type_udt_name,
@ -1407,7 +1407,7 @@ CREATE VIEW routines AS
CAST(null AS cardinal_number) AS result_cast_numeric_scale,
CAST(null AS cardinal_number) AS result_cast_datetime_precision,
CAST(null AS character_data) AS result_cast_interval_type,
CAST(null AS character_data) AS result_cast_interval_precision,
CAST(null AS cardinal_number) AS result_cast_interval_precision,
CAST(null AS sql_identifier) AS result_cast_type_udt_catalog,
CAST(null AS sql_identifier) AS result_cast_type_udt_schema,
CAST(null AS sql_identifier) AS result_cast_type_udt_name,
@ -2212,7 +2212,7 @@ CREATE VIEW user_defined_types AS
CAST(null AS cardinal_number) AS numeric_scale,
CAST(null AS cardinal_number) AS datetime_precision,
CAST(null AS character_data) AS interval_type,
CAST(null AS character_data) AS interval_precision,
CAST(null AS cardinal_number) AS interval_precision,
CAST(null AS sql_identifier) AS source_dtd_identifier,
CAST(null AS sql_identifier) AS ref_dtd_identifier
@ -2448,7 +2448,7 @@ CREATE VIEW element_types AS
CAST(null AS cardinal_number) AS numeric_scale,
CAST(null AS cardinal_number) AS datetime_precision,
CAST(null AS character_data) AS interval_type,
CAST(null AS character_data) AS interval_precision,
CAST(null AS cardinal_number) AS interval_precision,
CAST(null AS character_data) AS domain_default, -- XXX maybe a bug in the standard