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Commit9a75c19

Sofia Kopikova

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PGPRO-11098 add null-pointer check to ptrack_set_init_lsn() function

When ptrack extension is added to shared_preload_libraries, butptrack.map size is 0, we may encounter segmantation fault when callingptrack_backup_checkpoint_request_hook() function. This commit addsadditional null-pointer checks to ptrack_set_init_lsn() function calledby ptrack_backup_checkpoint_request_hook() to avoid this segfault

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Original file line number	Diff line number	Diff line change
`@@ -659,6 +659,10 @@ XLogRecPtr`
`659`	`659`	`ptrack_set_init_lsn(void)`
`660`	`660`	`{`
`661`	`661`	`XLogRecPtrnew_lsn;`
	`662`	`+`
	`663`	`+if (ptrack_map_size==0\|\|ptrack_map==NULL)`
	`664`	`+returnInvalidXLogRecPtr;`
	`665`	`+`
`662`	`666`	`if (RecoveryInProgress())`
`663`	`667`	`new_lsn=GetXLogReplayRecPtr(NULL);`
`664`	`668`	`else`

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Commit9a75c19

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`‎engine.c`

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