RDB$GET_CONTEXT/RDB$SET_CONTEXT parameters incorrectly described as CHAR NOT NULL instead of VARCHAR NULLABLE. [CORE4156] #4483
Comments
Modified by: @mrotteveeldescription: The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116,101,115,116,86,97,108,117,101,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar upto the declared length, padded with spaces, but it will prefix the right length (9). Testing with other varchars does not display this behavior. => The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar upto the declared length, padded with spaces, but it will prefix the right length (9). Testing with other varchars does not display this behavior. |
Modified by: @mrotteveeldescription: The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar upto the declared length, padded with spaces, but it will prefix the right length (9). Testing with other varchars does not display this behavior. => The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it will declare the right length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value) |
Modified by: @mrotteveeldescription: The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it will declare the right length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value) => The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it will declare the right length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value) |
Modified by: @mrotteveeldescription: The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it will declare the right length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value) => The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it does send the actual length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value), so it seems to be specific to RDB$SET_CONTEXT with parameters. |
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Commented by: @mrotteveel Test is FBConnection.testClientInfo() (in trunk) or FBConnection4_0.testClientInfo() in branch Branch_2_2 |
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Commented by: @mrotteveel Problem also applies to the variable name: SELECT RDB$SET_CONTEXT('USER_SESSION', ?, ?) FROM RDB$DATABASE And then retrieving the value using does not produce a result, but SELECT RDB$SET_CONTEXT('USER_SESSION', ?, ?) FROM RDB$DATABASE And then retrieving the value using does. |
Modified by: @mrotteveeldescription: The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it does send the actual length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value), so it seems to be specific to RDB$SET_CONTEXT with parameters. => The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it does send the actual length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value), so it seems to be specific to RDB$SET_CONTEXT with parameters. |
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Commented by: @mrotteveel Trace in Firebird 3.0 shows (note the amount of whitespace): param0 = varchar(80), "TestProperty " 2013-08-04T15:35:51.9100 (4940:0000000003184F10) SET_CONTEXT In Firebird 2.5 it does: param0 = varchar(80), "TestProperty" 2013-08-04T15:36:47.1510 (5136:00000000033C6020) SET_CONTEXT |
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Commented by: @mrotteveel Attached file with same data as previous comment, JIRA swallows the whitespace. |
Modified by: @mrotteveelAttachment: trace_set_context.txt [ 12358 ] |
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Commented by: @mrotteveel Walking through the test using Firebird 2.5 and Firebird 3.0, I see that Firebird 2.5 describes the parameters to RDB$SET_CONTEXT as sqltype 449 (VARCHAR + nullable), but Firebird 3.0 describes it as sqltype 452 (CHAR + not nullable). The parameter type should be VARCHAR (and I'd say at least the value parameter should be nullable), see http://www.firebirdsql.org/file/documentation/reference_manuals/reference_material/html/langrefupd25-intfunc-set_context.html |
Modified by: @mrotteveeldescription: The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it does send the actual length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value), so it seems to be specific to RDB$SET_CONTEXT with parameters. => The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449). Eg setting the context using And then retrieving the value using Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32] Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|"). The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it does send the actual length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value), so it seems to be specific to RDB$SET_CONTEXT with parameters. EDIT: summary: RDB$GET_CONTEXT value is padded with spaces upto the declared length (255) => RDB$SET_CONTEXT parameters incorrectly described as CHAR instead of VARCHAR |
Modified by: @asfernandesassignee: Adriano dos Santos Fernandes [ asfernandes ] |
Modified by: @asfernandessummary: RDB$SET_CONTEXT parameters incorrectly described as CHAR instead of VARCHAR => RDB$GET_CONTEXT/RDB$SET_CONTEXT parameters incorrectly described as CHAR NOT NULL instead of VARCHAR NULLABLE. |
Modified by: @asfernandesstatus: Open [ 1 ] => Resolved [ 5 ] resolution: Fixed [ 1 ] Fix Version: 3.0 Alpha 2 [ 10560 ] |
Modified by: @pcisarstatus: Resolved [ 5 ] => Closed [ 6 ] |
Modified by: @pavel-zotovstatus: Closed [ 6 ] => Closed [ 6 ] QA Status: Done successfully Test Details: See comments inside .fbt related to sqltype for nullable args (differ in 2.5 vs 3.0). |
firebird-issue-importer commentedAug 3, 2013
Submitted by: @mrotteveel
Attachments:
trace_set_context.txt
The value returned by a query with RDB$GET_CONTEXT inside an XSQLVAR is padded with spaces upto the declared length (255), even though the value itself is declared as a VARCHAR(sqltype=449).
Eg setting the context using
SELECT RDB$SET_CONTEXT('USER_SESSION', ?, ?) FROM RDB$DATABASE
with parameter 1 "TestProperty" and parameter 2 "testValue"
And then retrieving the value using
SELECT RDB$GET_CONTEXT('USER_SESSION', ?) FROM RDB$DATABASE
with parameter 1 "TestProperty"
Will return "testValue<+246 spaces>" (or [116, 101, 115, 116, 86, 97, 108, 117, 101, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32]
Firebird 2.5 and earlier exhibit the expected behavior (the returned value is "testValue" without any spaces). Strangely enough when I use flamerobin then the returned value is not padded, not even when I try with '|' || RDB$GET_CONTEXT('USER_SESSION', 'TestProperty') || '|', doing this with Jaybird does return the value padded (as "|testValue<+246 spaces>|").
The only reason I can think of is that the current version of Jaybird when sending the parameter value for the set context, it will send the varchar padded with spaces upto the declared length, but it does send the actual length (9). Testing with other varchars does not display this behavior (eg insert parametrized and select the value), so it seems to be specific to RDB$SET_CONTEXT with parameters.
EDIT:
See my comment at 04/Aug/13 01:56 PM: the cause seems to be the parameter description of the query with RDB$SET_CONTEXT: they are described as CHAR instead of VARCHAR.
Commits: 8a19e7a FirebirdSQL/fbt-repository@3a88585
====== Test Details ======
See comments inside .fbt related to sqltype for nullable args (differ in 2.5 vs 3.0).
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