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Add bytea equivalents of ltrim() and rtrim().

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We had bytea btrim() already, but for some reason not the other two.

Joel Jacobson

Discussion: https://postgr.es/m/d10cd5cd-a901-42f1-b832-763ac6f7ff3a@www.fastmail.com
This commit is contained in:
Tom Lane
2021-01-18 15:11:32 -05:00
parent a3ed4d1efe
commit a6cf3df4eb
9 changed files with 203 additions and 57 deletions
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5
src/test/regress/sql/create_view.sql
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@ -605,7 +605,10 @@ select
substring('foo' from 'oo') as ssf, -- historically-permitted abuse
trim(' ' from ' foo ') as bt,
trim(leading ' ' from ' foo ') as lt,
trim(trailing ' foo ') as rt;
trim(trailing ' foo ') as rt,
trim(E'\\000'::bytea from E'\\000Tom\\000'::bytea) as btb,
trim(leading E'\\000'::bytea from E'\\000Tom\\000'::bytea) as ltb,
trim(trailing E'\\000'::bytea from E'\\000Tom\\000'::bytea) as rtb;
select pg_get_viewdef('tt201v', true);
-- corner cases with empty join conditions