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Commit 3315020

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peterepetere
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Fix and clarify information schema interval_precision fields
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.
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+34
-19
lines changed

2 files changed

+34
-19
lines changed

‎doc/src/sgml/information_schema.sgml

+26-11
Original file line numberDiff line numberDiff line change
@@ -488,8 +488,13 @@
488488

489489
<row>
490490
<entry><literal>interval_precision</literal></entry>
491-
<entry><type>character_data</type></entry>
492-
<entry>Not yet implemented</entry>
491+
<entry><type>cardinal_number</type></entry>
492+
<entry>
493+
Applies to a feature not available
494+
in <productname>PostgreSQL</productname>
495+
(see <literal>datetime_precision</literal> for the fractional
496+
seconds precision of interval type attributes)
497+
</entry>
493498
</row>
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<row>
@@ -1343,8 +1348,13 @@
13431348

13441349
<row>
13451350
<entry><literal>interval_precision</literal></entry>
1346-
<entry><type>character_data</type></entry>
1347-
<entry>Not yet implemented</entry>
1351+
<entry><type>cardinal_number</type></entry>
1352+
<entry>
1353+
Applies to a feature not available
1354+
in <productname>PostgreSQL</productname>
1355+
(see <literal>datetime_precision</literal> for the fractional
1356+
seconds precision of interval type columns)
1357+
</entry>
13481358
</row>
13491359

13501360
<row>
@@ -2139,8 +2149,13 @@
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21402150
<row>
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<entry><literal>interval_precision</literal></entry>
2142-
<entry><type>character_data</type></entry>
2143-
<entry>Not yet implemented</entry>
2152+
<entry><type>cardinal_number</type></entry>
2153+
<entry>
2154+
Applies to a feature not available
2155+
in <productname>PostgreSQL</productname>
2156+
(see <literal>datetime_precision</literal> for the fractional
2157+
seconds precision of interval type domains)
2158+
</entry>
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</row>
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<row>
@@ -2400,7 +2415,7 @@ ORDER BY c.ordinal_position;
24002415

24012416
<row>
24022417
<entry><literal>interval_precision</literal></entry>
2403-
<entry><type>character_data</type></entry>
2418+
<entry><type>cardinal_number</type></entry>
24042419
<entry>Always null, since this information is not applied to array element data types in <productname>PostgreSQL</></entry>
24052420
</row>
24062421

@@ -3150,7 +3165,7 @@ ORDER BY c.ordinal_position;
31503165

31513166
<row>
31523167
<entry><literal>interval_precision</literal></entry>
3153-
<entry><type>character_data</type></entry>
3168+
<entry><type>cardinal_number</type></entry>
31543169
<entry>Always null, since this information is not applied to parameter data types in <productname>PostgreSQL</></entry>
31553170
</row>
31563171

@@ -4037,7 +4052,7 @@ ORDER BY c.ordinal_position;
40374052

40384053
<row>
40394054
<entry><literal>interval_precision</literal></entry>
4040-
<entry><type>character_data</type></entry>
4055+
<entry><type>cardinal_number</type></entry>
40414056
<entry>Always null, since this information is not applied to return data types in <productname>PostgreSQL</></entry>
40424057
</row>
40434058

@@ -4369,7 +4384,7 @@ ORDER BY c.ordinal_position;
43694384

43704385
<row>
43714386
<entry><literal>result_cast_interval_precision</literal></entry>
4372-
<entry><type>character_data</type></entry>
4387+
<entry><type>cardinal_number</type></entry>
43734388
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
43744389
</row>
43754390

@@ -6008,7 +6023,7 @@ ORDER BY c.ordinal_position;
60086023

60096024
<row>
60106025
<entry><literal>interval_precision</literal></entry>
6011-
<entry><type>character_data</type></entry>
6026+
<entry><type>cardinal_number</type></entry>
60126027
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
60136028
</row>
60146029

‎src/backend/catalog/information_schema.sql

+8-8
Original file line numberDiff line numberDiff line change
@@ -322,7 +322,7 @@ CREATE VIEW attributes AS
322322
AS datetime_precision,
323323

324324
CAST(null AS character_data) AS interval_type, -- FIXME
325-
CAST(null AS character_data) AS interval_precision, -- FIXME
325+
CAST(null AS cardinal_number) AS interval_precision,
326326

327327
CAST(current_database() AS sql_identifier) AS attribute_udt_catalog,
328328
CAST(nt.nspname AS sql_identifier) AS attribute_udt_schema,
@@ -671,7 +671,7 @@ CREATE VIEW columns AS
671671
AS datetime_precision,
672672

673673
CAST(null AS character_data) AS interval_type, -- FIXME
674-
CAST(null AS character_data) AS interval_precision, -- FIXME
674+
CAST(null AS cardinal_number) AS interval_precision,
675675

676676
CAST(null AS sql_identifier) AS character_set_catalog,
677677
CAST(null AS sql_identifier) AS character_set_schema,
@@ -937,7 +937,7 @@ CREATE VIEW domains AS
937937
AS datetime_precision,
938938

939939
CAST(null AS character_data) AS interval_type, -- FIXME
940-
CAST(null AS character_data) AS interval_precision, -- FIXME
940+
CAST(null AS cardinal_number) AS interval_precision,
941941

942942
CAST(t.typdefault AS character_data) AS domain_default,
943943

@@ -1085,7 +1085,7 @@ CREATE VIEW parameters AS
10851085
CAST(null AS cardinal_number) AS numeric_scale,
10861086
CAST(null AS cardinal_number) AS datetime_precision,
10871087
CAST(null AS character_data) AS interval_type,
1088-
CAST(null AS character_data) AS interval_precision,
1088+
CAST(null AS cardinal_number) AS interval_precision,
10891089
CAST(current_database() AS sql_identifier) AS udt_catalog,
10901090
CAST(nt.nspname AS sql_identifier) AS udt_schema,
10911091
CAST(t.typname AS sql_identifier) AS udt_name,
@@ -1353,7 +1353,7 @@ CREATE VIEW routines AS
13531353
CAST(null AS cardinal_number) AS numeric_scale,
13541354
CAST(null AS cardinal_number) AS datetime_precision,
13551355
CAST(null AS character_data) AS interval_type,
1356-
CAST(null AS character_data) AS interval_precision,
1356+
CAST(null AS cardinal_number) AS interval_precision,
13571357
CAST(current_database() AS sql_identifier) AS type_udt_catalog,
13581358
CAST(nt.nspname AS sql_identifier) AS type_udt_schema,
13591359
CAST(t.typname AS sql_identifier) AS type_udt_name,
@@ -1407,7 +1407,7 @@ CREATE VIEW routines AS
14071407
CAST(null AS cardinal_number) AS result_cast_numeric_scale,
14081408
CAST(null AS cardinal_number) AS result_cast_datetime_precision,
14091409
CAST(null AS character_data) AS result_cast_interval_type,
1410-
CAST(null AS character_data) AS result_cast_interval_precision,
1410+
CAST(null AS cardinal_number) AS result_cast_interval_precision,
14111411
CAST(null AS sql_identifier) AS result_cast_type_udt_catalog,
14121412
CAST(null AS sql_identifier) AS result_cast_type_udt_schema,
14131413
CAST(null AS sql_identifier) AS result_cast_type_udt_name,
@@ -2212,7 +2212,7 @@ CREATE VIEW user_defined_types AS
22122212
CAST(null AS cardinal_number) AS numeric_scale,
22132213
CAST(null AS cardinal_number) AS datetime_precision,
22142214
CAST(null AS character_data) AS interval_type,
2215-
CAST(null AS character_data) AS interval_precision,
2215+
CAST(null AS cardinal_number) AS interval_precision,
22162216
CAST(null AS sql_identifier) AS source_dtd_identifier,
22172217
CAST(null AS sql_identifier) AS ref_dtd_identifier
22182218

@@ -2448,7 +2448,7 @@ CREATE VIEW element_types AS
24482448
CAST(null AS cardinal_number) AS numeric_scale,
24492449
CAST(null AS cardinal_number) AS datetime_precision,
24502450
CAST(null AS character_data) AS interval_type,
2451-
CAST(null AS character_data) AS interval_precision,
2451+
CAST(null AS cardinal_number) AS interval_precision,
24522452

24532453
CAST(null AS character_data) AS domain_default, -- XXX maybe a bug in the standard
24542454

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