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Commit1222db9

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Fix handling of partition bounds for boolean partitioning columns.
Previously, you could partition by a boolean column as long as youspelled the bound values as string literals, for instance FOR VALUESIN ('t'). The trouble with this is that ruleutils.c printed that asFOR VALUES IN (TRUE), which is reasonable syntax but wasn't accepted bythe grammar. That results in dump-and-reload failures for such cases.Apply a minimal fix that just causes TRUE and FALSE to be converted tostrings 'true' and 'false'. This is pretty grotty, but it's too late fora more principled fix in v11 (to say nothing of v10). We should revisitthe whole issue of how partition bound values are parsed for v12.Amit LangoteDiscussion:https://postgr.es/m/e05c5162-1103-7e37-d1ab-6de3e0afaf70@lab.ntt.co.jp
1 parentfab4eca commit1222db9

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4 files changed

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‎doc/src/sgml/ref/create_table.sgml

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@@ -86,9 +86,9 @@ CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXI
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<phrase>and <replaceable class="PARAMETER">partition_bound_spec</replaceable> is:</phrase>
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IN ( { <replaceable class="PARAMETER">numeric_literal</replaceable> | <replaceable class="PARAMETER">string_literal</replaceable> | NULL } [, ...] ) |
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FROM ( { <replaceable class="PARAMETER">numeric_literal</replaceable> | <replaceable class="PARAMETER">string_literal</replaceable> | MINVALUE | MAXVALUE } [, ...] )
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TO ( { <replaceable class="PARAMETER">numeric_literal</replaceable> | <replaceable class="PARAMETER">string_literal</replaceable> | MINVALUE | MAXVALUE } [, ...] )
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IN ( { <replaceable class="PARAMETER">numeric_literal</replaceable> | <replaceable class="PARAMETER">string_literal</replaceable> |TRUE | FALSE |NULL } [, ...] ) |
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FROM ( { <replaceable class="PARAMETER">numeric_literal</replaceable> | <replaceable class="PARAMETER">string_literal</replaceable> |TRUE | FALSE |MINVALUE | MAXVALUE } [, ...] )
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TO ( { <replaceable class="PARAMETER">numeric_literal</replaceable> | <replaceable class="PARAMETER">string_literal</replaceable> |TRUE | FALSE |MINVALUE | MAXVALUE } [, ...] )
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<phrase><replaceable class="PARAMETER">index_parameters</replaceable> in <literal>UNIQUE</literal>, <literal>PRIMARY KEY</literal>, and <literal>EXCLUDE</literal> constraints are:</phrase>
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‎src/backend/parser/gram.y

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@@ -2649,6 +2649,8 @@ ForValues:
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partbound_datum:
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Sconst{$$ = makeStringConst($1,@1); }
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|NumericOnly{$$ = makeAConst($1,@1); }
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|TRUE_P{$$ = makeStringConst(pstrdup("true"),@1); }
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|FALSE_P{$$ = makeStringConst(pstrdup("false"),@1); }
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|NULL_P{$$ = makeNullAConst(@1); }
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;
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‎src/test/regress/expected/create_table.out

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@@ -811,3 +811,17 @@ Partition of: arrlp FOR VALUES IN ('{1}', '{2}')
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Partition constraint: ((a IS NOT NULL) AND (((a)::anyarray OPERATOR(pg_catalog.=) '{1}'::integer[]) OR ((a)::anyarray OPERATOR(pg_catalog.=) '{2}'::integer[])))
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DROP TABLE arrlp;
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-- partition on boolean column
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create table boolspart (a bool) partition by list (a);
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create table boolspart_t partition of boolspart for values in (true);
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create table boolspart_f partition of boolspart for values in (false);
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\d+ boolspart
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Table "public.boolspart"
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Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
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--------+---------+-----------+----------+---------+---------+--------------+-------------
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a | boolean | | | | plain | |
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Partition key: LIST (a)
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Partitions: boolspart_f FOR VALUES IN (false),
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boolspart_t FOR VALUES IN (true)
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drop table boolspart;

‎src/test/regress/sql/create_table.sql

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Original file line numberDiff line numberDiff line change
@@ -668,3 +668,10 @@ CREATE TABLE arrlp (a int[]) PARTITION BY LIST (a);
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CREATETABLEarrlp12 PARTITION OF arrlp FORVALUESIN ('{1}','{2}');
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\d+ arrlp12
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DROPTABLE arrlp;
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-- partition on boolean column
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createtableboolspart (a bool) partition by list (a);
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createtableboolspart_t partition of boolspart forvaluesin (true);
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createtableboolspart_f partition of boolspart forvaluesin (false);
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\d+ boolspart
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droptable boolspart;

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