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-rw-r--r--src/backend/access/transam/xact.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c
index e9ed92b70bb..b04fdb5d5ed 100644
--- a/src/backend/access/transam/xact.c
+++ b/src/backend/access/transam/xact.c
@@ -264,6 +264,9 @@ static char *prepareGID;
*/
static bool forceSyncCommit = false;
+/* Flag for logging statements in a transaction. */
+bool xact_is_sampled = false;
+
/*
* Private context for transaction-abort work --- we reserve space for this
* at startup to ensure that AbortTransaction and AbortSubTransaction can work
@@ -1903,6 +1906,11 @@ StartTransaction(void)
s->state = TRANS_START;
s->fullTransactionId = InvalidFullTransactionId; /* until assigned */
+ /* Determine if statements are logged in this transaction */
+ xact_is_sampled = log_xact_sample_rate != 0 &&
+ (log_xact_sample_rate == 1 ||
+ random() <= log_xact_sample_rate * MAX_RANDOM_VALUE);
+
/*
* initialize current transaction state fields
*