From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Christopher Cain <ccain@mhsoftware.com>
Cc: pgsql-interfaces@postgresql.org
Cc: pgsql-patches@postgresql.org
Subject: Re: [PATCHES] JDBC Patch
Date: Tue, 12 Sep 2000 00:16:57 -0400 (EDT)
Message-ID: <200009120416.AAA08841@candle.pha.pa.us> (raw)
In-Reply-To: <39A577C6.52AD43D8@mhsoftware.com>
Applied. Thanks.
> This patch for the 7.0.2 JDBC interface addresses four issues I
> encountered while getting my reporting tool up and running with the
> driver. All changes are in the DatabaseMetaData class.
>
> Problem: The getDatabaseProductVersion() method was returning "6.5.2"
> Resolution: Changed it to return "7.0.2"
>
> Problem: A call to getTables() with an unsupported table type (in the
> String array) resulted in a malformed SQL statement and subsequent
> parsing error
> Resolution: Unsupported table types are now ignored without error
>
> Problem: In a getTables() call, tables and views were both returned by
> the "TABLE" table type, and the "VIEW" table type was unsupported
> Resolution: Changed the "TABLE" type to return only physical tables and
> added support for the "VIEW" table type (returning only views)
>
> Problem: The getIdentifierQuoteString() method was returning null
> Resolution: This method now returns a double-quote
>
> Regards ...
>
> - Christopher
> diff -U 5 -r postgresql-7.0.2/src/interfaces/jdbc/org/postgresql/jdbc1/DatabaseMetaData.java postgresql-7.0.2a/src/interfaces/jdbc/org/postgresql/jdbc1/DatabaseMetaData.java
> --- postgresql-7.0.2/src/interfaces/jdbc/org/postgresql/jdbc1/DatabaseMetaData.java Mon Apr 17 14:07:48 2000
> +++ postgresql-7.0.2a/src/interfaces/jdbc/org/postgresql/jdbc1/DatabaseMetaData.java Thu Aug 24 11:42:28 2000
> @@ -177,11 +177,11 @@
> * @return the database version
> * @exception SQLException if a database access error occurs
> */
> public String getDatabaseProductVersion() throws SQLException
> {
> - return ("6.5.2");
> + return ("7.0.2");
> }
>
> /**
> * What is the name of this JDBC driver? If we don't know this
> * we are doing something wrong!
> @@ -361,11 +361,11 @@
> * @return the quoting string
> * @exception SQLException if a database access error occurs
> */
> public String getIdentifierQuoteString() throws SQLException
> {
> - return null;
> + return "\"";
> }
>
> /**
> * Get a comma separated list of all a database's SQL keywords that
> * are NOT also SQL92 keywords.
> @@ -1652,14 +1652,14 @@
>
> // Now form the query
> StringBuffer sql = new StringBuffer("select relname,oid from pg_class where (");
> boolean notFirst=false;
> for(int i=0;i<types.length;i++) {
> - if(notFirst)
> - sql.append(" or ");
> for(int j=0;j<getTableTypes.length;j++)
> if(getTableTypes[j][0].equals(types[i])) {
> + if(notFirst)
> + sql.append(" or ");
> sql.append(getTableTypes[j][1]);
> notFirst=true;
> }
> }
>
> @@ -1704,22 +1704,23 @@
> // Each supported type consists of it's name, and the sql where
> // clause to retrieve that value.
> //
> // IMPORTANT: the query must be enclosed in ( )
> private static final String getTableTypes[][] = {
> - {"TABLE", "(relkind='r' and relname !~ '^pg_' and relname !~ '^xinv')"},
> + {"TABLE", "(relkind='r' and relhasrules='f' and relname !~ '^pg_' and relname !~ '^xinv')"},
> + {"VIEW", "(relkind='r' and relhasrules='t' and relname !~ '^pg_' and relname !~ '^xinv')"},
> {"INDEX", "(relkind='i' and relname !~ '^pg_' and relname !~ '^xinx')"},
> {"LARGE OBJECT", "(relkind='r' and relname ~ '^xinv')"},
> {"SEQUENCE", "(relkind='S' and relname !~ '^pg_')"},
> {"SYSTEM TABLE", "(relkind='r' and relname ~ '^pg_')"},
> {"SYSTEM INDEX", "(relkind='i' and relname ~ '^pg_')"}
> };
>
> // These are the default tables, used when NULL is passed to getTables
> // The choice of these provide the same behaviour as psql's \d
> private static final String defaultTableTypes[] = {
> - "TABLE","INDEX","SEQUENCE"
> + "TABLE","VIEW","INDEX","SEQUENCE"
> };
>
> /**
> * Get the schema names available in this database. The results
> * are ordered by schema name.
> diff -U 5 -r postgresql-7.0.2/src/interfaces/jdbc/org/postgresql/jdbc2/DatabaseMetaData.java postgresql-7.0.2a/src/interfaces/jdbc/org/postgresql/jdbc2/DatabaseMetaData.java
> --- postgresql-7.0.2/src/interfaces/jdbc/org/postgresql/jdbc2/DatabaseMetaData.java Mon Apr 17 14:07:50 2000
> +++ postgresql-7.0.2a/src/interfaces/jdbc/org/postgresql/jdbc2/DatabaseMetaData.java Wed Aug 23 15:14:50 2000
> @@ -177,11 +177,11 @@
> * @return the database version
> * @exception SQLException if a database access error occurs
> */
> public String getDatabaseProductVersion() throws SQLException
> {
> - return ("6.5.2");
> + return ("7.0.2");
> }
>
> /**
> * What is the name of this JDBC driver? If we don't know this
> * we are doing something wrong!
> @@ -361,11 +361,11 @@
> * @return the quoting string
> * @exception SQLException if a database access error occurs
> */
> public String getIdentifierQuoteString() throws SQLException
> {
> - return null;
> + return "\"";
> }
>
> /**
> * Get a comma separated list of all a database's SQL keywords that
> * are NOT also SQL92 keywords.
> @@ -1652,14 +1652,14 @@
>
> // Now form the query
> StringBuffer sql = new StringBuffer("select relname,oid from pg_class where (");
> boolean notFirst=false;
> for(int i=0;i<types.length;i++) {
> - if(notFirst)
> - sql.append(" or ");
> for(int j=0;j<getTableTypes.length;j++)
> if(getTableTypes[j][0].equals(types[i])) {
> + if(notFirst)
> + sql.append(" or ");
> sql.append(getTableTypes[j][1]);
> notFirst=true;
> }
> }
>
> @@ -1704,22 +1704,23 @@
> // Each supported type consists of it's name, and the sql where
> // clause to retrieve that value.
> //
> // IMPORTANT: the query must be enclosed in ( )
> private static final String getTableTypes[][] = {
> - {"TABLE", "(relkind='r' and relname !~ '^pg_' and relname !~ '^xinv')"},
> + {"TABLE", "(relkind='r' and relhasrules='f' and relname !~ '^pg_' and relname !~ '^xinv')"},
> + {"VIEW", "(relkind='r' and relhasrules='t' and relname !~ '^pg_' and relname !~ '^xinv')"},
> {"INDEX", "(relkind='i' and relname !~ '^pg_' and relname !~ '^xinx')"},
> {"LARGE OBJECT", "(relkind='r' and relname ~ '^xinv')"},
> {"SEQUENCE", "(relkind='S' and relname !~ '^pg_')"},
> {"SYSTEM TABLE", "(relkind='r' and relname ~ '^pg_')"},
> {"SYSTEM INDEX", "(relkind='i' and relname ~ '^pg_')"}
> };
>
> // These are the default tables, used when NULL is passed to getTables
> // The choice of these provide the same behaviour as psql's \d
> private static final String defaultTableTypes[] = {
> - "TABLE","INDEX","SEQUENCE"
> + "TABLE","VIEW","INDEX","SEQUENCE"
> };
>
> /**
> * Get the schema names available in this database. The results
> * are ordered by schema name.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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To: pgsql-interfaces@postgresql.org
Cc: pgman@candle.pha.pa.us, ccain@mhsoftware.com, pgsql-patches@postgresql.org
Subject: Re: [PATCHES] JDBC Patch
In-Reply-To: <200009120416.AAA08841@candle.pha.pa.us>
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