Are these errors meaningful?

Am I the only person seeing these in the console log?
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19-21:13:37.536 21_13 -LOG- Altering table StructuresHistory not successfull: SQL logic error
duplicate column name: pfid. Table already in correct format.
19-21:13:37.536 21_13 -LOG- Altering table TerrainPlaceables not successfull: SQL logic error
duplicate column name: tpentityid. Table already in correct format.
19-21:13:37.538 21_13 -LOG- Altering table DialogueVars not successfull: SQL logic error
duplicate column name: valuestr. Table already in correct format.
19-21:13:37.538 21_13 -LOG- Altering table PerformanceData not successfull: SQL logic error
duplicate column name: hitasks. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table PerformanceData not successfull: SQL logic error
duplicate column name: lotasks. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table PerformanceData not successfull: SQL logic error
duplicate column name: dbtasks. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table PerformanceData not successfull: SQL logic error
duplicate column name: queue0. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table PerformanceData not successfull: SQL logic error
duplicate column name: queue1. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table PerformanceData not successfull: SQL logic error
duplicate column name: queue2. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table PerformanceData not successfull: SQL logic error
duplicate column name: queue3. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table PerformanceNWPackages not successfull: SQL logic error
duplicate column name: type. Table already in correct format.
19-21:13:37.539 21_13 -LOG- Altering table Marketplace not successfull: SQL logic error
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