Обсуждение: pgsql: Re-think guts of DROP INDEX CONCURRENTLY.

Re-think guts of DROP INDEX CONCURRENTLY.
Concurrent behaviour was flawed when using
a two-step process, so add an additional
phase of processing to ensure concurrency
for both SELECTs and INSERT/UPDATE/DELETEs.

Backpatch to 9.2

Andres Freund, tweaked by me

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/2f0e480d02cde469e64d03dc8ca198cbfd597640

Modified Files
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src/backend/catalog/index.c |  104 +++++++++++++++++++++++++++++++++++++------
1 files changed, 90 insertions(+), 14 deletions(-)