--- ./src/backend/access/transam/timeline.c 2021-05-11 02:11:42.000000000 +0530 +++ ./src/backend/access/transam/timeline.c.mod 2021-06-17 13:56:32.191999896 +0530 @@ -446,7 +446,7 @@ * Perform the rename using link if available, paranoidly trying to avoid * overwriting an existing file (there shouldn't be one). */ - durable_rename_excl(tmppath, path, ERROR); + durable_link_or_rename(tmppath, path, ERROR); /* The history file can be archived immediately. */ if (XLogArchivingActive()) @@ -524,7 +524,7 @@ * Perform the rename using link if available, paranoidly trying to avoid * overwriting an existing file (there shouldn't be one). */ - durable_rename_excl(tmppath, path, ERROR); + durable_link_or_rename(tmppath, path, ERROR); } /* --- ./src/backend/access/transam/xlog.c 2021-05-11 02:11:42.000000000 +0530 +++ ./src/backend/access/transam/xlog.c.mod 2021-06-17 13:58:47.831999844 +0530 @@ -3624,11 +3624,11 @@ * Perform the rename using link if available, paranoidly trying to avoid * overwriting an existing file (there shouldn't be one). */ - if (durable_rename_excl(tmppath, path, LOG) != 0) + if (durable_link_or_rename(tmppath, path, LOG) != 0) { if (use_lock) LWLockRelease(ControlFileLock); - /* durable_rename_excl already emitted log message */ + /* durable_link_or_rename already emitted log message */ return false; } --- ./src/backend/storage/file/fd.c 2021-05-11 02:11:42.000000000 +0530 +++ ./src/backend/storage/file/fd.c.mod 2021-06-17 14:06:02.861999678 +0530 @@ -767,7 +767,7 @@ } /* - * durable_rename_excl -- rename a file in a durable manner. + * durable_link_or_rename -- rename a file in a durable manner. * * Similar to durable_rename(), except that this routine tries (but does not * guarantee) not to overwrite the target file. @@ -785,7 +785,7 @@ * valid upon return. */ int -durable_rename_excl(const char *oldfile, const char *newfile, int elevel) +durable_link_or_rename(const char *oldfile, const char *newfile, int elevel) { /* * Ensure that, if we crash directly after the rename/link, a file with --- ./src/include/pg_config_manual.h 2021-05-11 02:11:42.000000000 +0530 +++ ./src/include/pg_config_manual.h.mod 2021-06-17 14:09:25.941999601 +0530 @@ -138,7 +138,7 @@ /* * Define this if your operating system supports link() */ -#if !defined(WIN32) && !defined(__CYGWIN__) +#if !defined(WIN32) && !defined(__CYGWIN__) && !defined(__ANDROID__) #define HAVE_WORKING_LINK 1 #endif --- ./src/include/storage/fd.h 2021-05-11 02:11:42.000000000 +0530 +++ ./src/include/storage/fd.h.mod 2021-06-17 14:13:22.074549249 +0530 @@ -157,7 +157,7 @@ extern int fsync_fname_ext(const char *fname, bool isdir, bool ignore_perm, int elevel); extern int durable_rename(const char *oldfile, const char *newfile, int loglevel); extern int durable_unlink(const char *fname, int loglevel); -extern int durable_rename_excl(const char *oldfile, const char *newfile, int loglevel); +extern int durable_link_or_rename(const char *oldfile, const char *newfile, int loglevel); extern void SyncDataDirectory(void); extern int data_sync_elevel(int elevel);