Anton Andreev wrote:
When I create a check constraint in PgAdmin3 1.8.4 on a Postgresql
8.3.3: ((A and B) or (C and D))
I get with create script: (A and B or C and D) which is wrong.
No, it isn't - both are the same.
AND has higher operator precedence than OR, see
http://www.postgresql.org/docs/8.3/static/sql-syntax-lexical.html#SQL-PRECEDENCE-TABLE
Yours,
Laurenz Albe
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