transactions use one host, and read-only transactions use a replicas – or use pgpool-II • Adds more complexity and an extra hop though • But can help with availability Postgres Conference China 2016 中国用户大会

might relieve the DBA from having to deal with some of the idiosyncrasies of NFS, but of course the complexity of managing remote storage then happens at other levels. 19.3. Starting the Database Server Before advisable any time you want to use more than a single command in the archiving process. This allows all complexity to be managed within the script, which can be written in a popular scripting language such as bash system (called a witness server) to prevent some cases of inappropriate failover, but the additional complexity might not be worthwhile unless it is set up with sufficient care and rigorous testing. PostgreSQL

might relieve the DBA from having to deal with some of the idiosyncrasies of NFS, but of course the complexity of managing remote storage then happens at other levels. 19.3. Starting the Database Server Before advisable any time you want to use more than a single command in the archiving process. This allows all complexity to be managed within the script, which can be written in a popular scripting language such as bash system (called a witness server) to prevent some cases of inappropriate failover, but the additional complexity might not be worthwhile unless it is set up with sufficient care and rigorous testing. PostgreSQL

(called a witness server) to avoid some problems of inappropriate failover, but the additional complexity may not be worthwhile unless it is set-up with sufficient care and rigorous testing. Once failover Calling Conventions The version-1 calling convention relies on macros to suppress most of the complexity of passing argu- ments and results. The C declaration of a version-1 function is always Datum C-language function, you can use a special API that provides macros and functions to hide most of the complexity of building composite data types. To use this API, the source file must include: #include "funcapi

(called a witness server) to avoid some problems of inappropriate failover, but the additional complexity may not be worthwhile unless it is set-up with sufficient care and rigorous testing. Once failover Calling Conventions The version-1 calling convention relies on macros to suppress most of the complexity of passing argu- ments and results. The C declaration of a version-1 function is always Datum C-language function, you can use a special API that provides macros and functions to hide most of the complexity of building composite data types. To use this API, the source file must include: #include "funcapi

C-Language Functions The version-1 calling convention relies on macros to suppress most of the complexity of passing argu- ments and results. The C declaration of a version-1 function is always Datum C-language function, you can use a special API that provides macros and functions to hide most of the complexity of building composite data types. To use this API, the source file must include: #include "funcapi may be used to retrieve rows in a nonsequential fashion (e.g., back- ward). Depending upon the complexity of the query’s execution plan, specifying SCROLL may impose a performance penalty on the query’s

C-Language Functions The version-1 calling convention relies on macros to suppress most of the complexity of passing argu- ments and results. The C declaration of a version-1 function is always Datum C-language function, you can use a special API that provides macros and functions to hide most of the complexity of building composite data types. To use this API, the source file must include: #include "funcapi may be used to retrieve rows in a nonsequential fashion (e.g., back- ward). Depending upon the complexity of the query’s execution plan, specifying SCROLL may impose a performance penalty on the query’s

might relieve the DBA from having to deal with some of the idiosyncrasies of NFS, but of course the complexity of managing remote storage then happens at other levels. 19.3. Starting the Database Server Before advisable any time you want to use more than a single command in the archiving process. This allows all complexity to be managed within the script, which can be written in a popular scripting language such as bash system (called a witness server) to prevent some cases of inappropriate failover, but the additional complexity might not be worthwhile unless it is set up with sufficient care and rigorous testing. PostgreSQL

might relieve the DBA from having to deal with some of the idiosyncrasies of NFS, but of course the complexity of managing remote storage then happens at other levels. 19.3. Starting the Database Server Before advisable any time you want to use more than a single command in the archiving process. This allows all complexity to be managed within the script, which can be written in a popular scripting language such as bash system (called a witness server) to prevent some cases of inappropriate failover, but the additional complexity might not be worthwhile unless it is set up with sufficient care and rigorous testing. PostgreSQL

might relieve the DBA from having to deal with some of the idiosyncrasies of NFS, but of course the complexity of managing remote storage then happens at other levels. 19.3. Starting the Database Server Before advisable any time you want to use more than a single command in the archiving process. This allows all complexity to be managed within the script, which can be written in a popular scripting language such as bash system (called a witness server) to prevent some cases of inappropriate failover, but the additional complexity might not be worthwhile unless it is set up with sufficient care and rigorous testing. PostgreSQL