Mercurial > hg > monetdb-java
changeset 430:3924a8516d7b
Refactor MonetDatabaseMetaData.getClientInfoProperties
Use VALUES instead of a UNION of SELECTs
author | Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com> |
---|---|
date | Mon, 08 Feb 2021 14:29:13 +0100 (2021-02-08) |
parents | e4e104f8146c |
children | 2558a6178419 |
files | src/main/java/org/monetdb/jdbc/MonetDatabaseMetaData.java |
diffstat | 1 files changed, 16 insertions(+), 13 deletions(-) [+] |
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--- a/src/main/java/org/monetdb/jdbc/MonetDatabaseMetaData.java +++ b/src/main/java/org/monetdb/jdbc/MonetDatabaseMetaData.java @@ -3734,19 +3734,22 @@ public class MonetDatabaseMetaData public ResultSet getClientInfoProperties() throws SQLException { // for a list of connection properties see also MonetConnection.java constructor MonetConnection(Properties props) final String query = - "SELECT 'host' AS \"NAME\", cast(1024 as int) AS \"MAX_LEN\", 'localhost' AS \"DEFAULT_VALUE\", 'DSN or IP-address of machine running MonetDB' AS \"DESCRIPTION\" UNION ALL " + - "SELECT 'port', 5, '50000', 'communication port number of MonetDB server process' UNION ALL " + - "SELECT 'user', 1024, '', 'user name to login to MonetDB server' UNION ALL " + - "SELECT 'password', 128, '', 'password for user name to login to MonetDB server' UNION ALL " + - "SELECT 'language', 16, 'sql', 'language (sql or mal) used to parse commands in MonetDB server' UNION ALL " + - "SELECT 'database', 1024, 'demo', 'name of database. It matches the dbfarm subdirectory name' UNION ALL " + - "SELECT 'debug', 5, 'false', 'boolean flag true or false' UNION ALL " + - "SELECT 'logfile', 1024, 'monet_######.log', 'name of logfile used when debug is enabled' UNION ALL " + - "SELECT 'hash', 128, '', 'hash methods list to use in server connection. Supported are SHA512, SHA384, SHA256 and SHA1' UNION ALL " + - "SELECT 'treat_blob_as_binary', 5, 'true', 'should blob columns be mapped to Types.VARBINARY instead of default Types.BLOB in ResultSets and PreparedStatements' UNION ALL " + - "SELECT 'treat_clob_as_varchar', 5, 'true', 'should clob columns be mapped to Types.VARCHAR instead of default Types.CLOB in ResultSets and PreparedStatements' UNION ALL " + - "SELECT 'so_timeout', 10, '0', 'timeout (in milliseconds) of communication socket. 0 means no timeout is set' " + - "ORDER BY \"NAME\""; + "SELECT * FROM (VALUES\n" + + " ('host', cast(1024 as int), 'localhost', 'DSN or IP-address of machine running MonetDB'),\n" + + " ('port', 5, '50000', 'communication port number of MonetDB server process'),\n" + + " ('user', 1024, '', 'user name to login to MonetDB server'),\n" + + " ('password', 128, '', 'password for user name to login to MonetDB server'),\n" + + " ('language', 16, 'sql', 'language (sql or mal) used to parse commands in MonetDB server'),\n" + + " ('database', 1024, 'demo', 'name of database. It matches the dbfarm subdirectory name'),\n" + + " ('debug', 5, 'false', 'boolean flag true or false'),\n" + + " ('logfile', 1024, 'monet_######.log', 'name of logfile used when debug is enabled'),\n" + + " ('hash', 128, '', 'hash methods list to use in server connection. Supported are SHA512, SHA384, SHA256 and SHA1'),\n" + + " ('treat_blob_as_binary', 5, 'true', 'should blob columns be mapped to Types.VARBINARY instead of default Types.BLOB in ResultSets and PreparedStatements'),\n" + + " ('treat_clob_as_varchar', 5, 'true', 'should clob columns be mapped to Types.VARCHAR instead of default Types.CLOB in ResultSets and PreparedStatements'),\n" + + " ('so_timeout', 10, '0', 'timeout (in milliseconds) of communication socket. 0 means no timeout is set')\n" + + ") AS t(\"NAME\", \"MAX_LEN\", \"DEFAULT_VALUE\", \"DESCRIPTION\")\n" + + "ORDER BY \"NAME\""; + return executeMetaDataQuery(query); }