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Fix failure to remove dependencies when a partition is detached.

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Otherwise, dropping the partitioned table will automatically drop
any previously-detached children, which would be unfortunate.

Ashutosh Bapat and Rahila Syed, reviewed by Amit Langote and by me.

Discussion: http://postgr.es/m/CAFjFpRdOwHuGj45i25iLQ4QituA0uH6RuLX1h5deD4KBZJ25yg@mail.gmail.com
This commit is contained in:
Robert Haas
2017-06-13 11:51:42 -04:00
parent 506b565831
commit ee252f074b
3 changed files with 44 additions and 14 deletions
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10
src/test/regress/sql/alter_table.sql
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@ -2204,6 +2204,16 @@ SELECT attinhcount, attislocal FROM pg_attribute WHERE attrelid = 'part_3_4'::re
SELECT coninhcount, conislocal FROM pg_constraint WHERE conrelid = 'part_3_4'::regclass AND conname = 'check_a';
DROP TABLE part_3_4;
-- check that a detached partition is not dropped on dropping a partitioned table
CREATE TABLE range_parted2 (
a int
) PARTITION BY RANGE(a);
CREATE TABLE part_rp PARTITION OF range_parted2 FOR VALUES FROM (0) to (100);
ALTER TABLE range_parted2 DETACH PARTITION part_rp;
DROP TABLE range_parted2;
SELECT * from part_rp;
DROP TABLE part_rp;
-- Check ALTER TABLE commands for partitioned tables and partitions
-- cannot add/drop column to/from *only* the parent