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libpq: Make target_session_attrs=read-write consume empty result.

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Otherwise, the leftover empty result can cause problems in some
situations.

Michael Paquier and Ashutosh Bapat, per a report from Higuchi Daisuke
This commit is contained in:
Robert Haas
2017-02-15 11:03:30 -05:00
parent fbe7a3fa45
commit 1de0a4e00e
2 changed files with 38 additions and 4 deletions
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4
src/interfaces/libpq/libpq-fe.h
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@@ -63,8 +63,10 @@ typedef enum
CONNECTION_SETENV, /* Negotiating environment. */
CONNECTION_SSL_STARTUP, /* Negotiating SSL. */
CONNECTION_NEEDED, /* Internal state: connect() needed */
CONNECTION_CHECK_WRITABLE /* Check if we could make a writable
CONNECTION_CHECK_WRITABLE, /* Check if we could make a writable
* connection. */
CONNECTION_CONSUME /* Wait for any pending message and
* consume them. */
} ConnStatusType;
typedef enum