pgsql: Expand warnings on locks acquired by CREATE INDEX CONCURRENTLY

Expand warnings on locks acquired by CREATE INDEX CONCURRENTLY

The previous wording wasn't explicit enough, which could misled readers
into thinking that the locks acquired are more restricted in nature than
they really are.  The resulting optimism can be damaging to morale when
confronted with reality, as has been observed in the field.

Greg Smith

Branch
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REL9_0_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/2602e637505ed9b4500bb0f17abcb630b2b711b3

Modified Files
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doc/src/sgml/ref/create_index.sgml |   11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)