Обсуждение: pgsql: Fix the initial sync tables with no columns.

Fix the initial sync tables with no columns.

The copy command formed for initial sync was using parenthesis for tables
with no columns leading to syntax error. This patch avoids adding
parenthesis for such tables.

Reported-by: Justin G
Author: Vignesh C
Reviewed-by: Peter Smith, Amit Kapila
Backpatch-through: 15
Discussion: http://postgr.es/m/18203-df37fe354b626670@postgresql.org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/eeb0ebad79d9350305d9e111fbac76e20fa4b2fe

Modified Files
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src/backend/replication/logical/tablesync.c | 28 ++++++++++++++++++----------
src/test/subscription/t/001_rep_changes.pl  | 17 ++++++++++++++++-
2 files changed, 34 insertions(+), 11 deletions(-)