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Commitbe420fa

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Fix subquery reference to non-populated MV in CMV.
A subquery reference to a matview should be allowed by CREATEMATERIALIZED VIEW WITH NO DATA, just like a direct reference is.Per bug report from Laurent Sartran.Backpatch to 9.3.
1 parent24ace40 commitbe420fa

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3 files changed

+14
-1
lines changed

3 files changed

+14
-1
lines changed

‎src/backend/executor/execMain.c

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -865,7 +865,8 @@ InitPlan(QueryDesc *queryDesc, int eflags)
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* it is a parameterless subplan (not initplan), we suggest that it be
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* prepared to handle REWIND efficiently; otherwise there is no need.
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*/
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sp_eflags=eflags&EXEC_FLAG_EXPLAIN_ONLY;
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sp_eflags=eflags
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& (EXEC_FLAG_EXPLAIN_ONLY |EXEC_FLAG_WITH_NO_DATA);
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if (bms_is_member(i,plannedstmt->rewindPlanIDs))
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sp_eflags |=EXEC_FLAG_REWIND;
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‎src/test/regress/expected/matview.out

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -424,6 +424,12 @@ REFRESH MATERIALIZED VIEW mv;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mv;
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DROP TABLE foo CASCADE;
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NOTICE: drop cascades to materialized view mv
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-- allow subquery to reference unpopulated matview if WITH NO DATA is specified
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CREATE MATERIALIZED VIEW mv1 AS SELECT 1 AS col1 WITH NO DATA;
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CREATE MATERIALIZED VIEW mv2 AS SELECT * FROM mv1
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WHERE col1 = (SELECT LEAST(col1) FROM mv1) WITH NO DATA;
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DROP MATERIALIZED VIEW mv1 CASCADE;
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NOTICE: drop cascades to materialized view mv2
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-- make sure that types with unusual equality tests work
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CREATE TABLE boxes (id serial primary key, b box);
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INSERT INTO boxes (b) VALUES

‎src/test/regress/sql/matview.sql

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -155,6 +155,12 @@ REFRESH MATERIALIZED VIEW mv;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mv;
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DROPTABLE foo CASCADE;
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-- allow subquery to reference unpopulated matview if WITH NO DATA is specified
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CREATE MATERIALIZED VIEW mv1ASSELECT1AS col1 WITH NO DATA;
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CREATE MATERIALIZED VIEW mv2ASSELECT*FROM mv1
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WHERE col1= (SELECT LEAST(col1)FROM mv1) WITH NO DATA;
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DROP MATERIALIZED VIEW mv1 CASCADE;
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-- make sure that types with unusual equality tests work
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CREATETABLEboxes (idserialprimary key, bbox);
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INSERT INTO boxes (b)VALUES

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