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authorBoris Kolpackov <boris@codesynthesis.com>2011-10-02 17:07:20 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2011-10-02 17:07:20 +0200
commit7d3b47fc855c183a0269ee4fb8c66d5ef9545f4d (patch)
tree4af3a222a1a48893e280366ce840d38c386e96b0 /m4/acx-pthread.m4
parent219d6ffefb5f71fc2a262f8b5c93f2f88e9aecd9 (diff)
If query substituting placeholder is empty, pass true expression instead
This allows uniform usage of views both with and without any extra conditions. Also optimize some common cases so that we don't have useless WHERE TRUE clauses or (...) AND (TRUE) expressions.
Diffstat (limited to 'm4/acx-pthread.m4')
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