Difference between revisions of "PostgreSQL Adapter Project - Extending SQLSchemaManager"
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| + | == Task Details == | ||
| + | === Extend SQLSchemaManager to support PostgreSQL === | ||
| + | Create a new class PostgreSQLSchemaManager by extending SQLSchemaManager and implementing all necessary abstract classes | ||
| + | |||
| + | === Research and add Maximum column Precision === | ||
| + | Following are the Maximum column precisions we might need to establish: | ||
| + | (All constants are defined in PostgreSQLAdapter class) | ||
| + | * DEFAULT_FETCH_SIZE | ||
| + | * MAX_CHAR_PRECISION | ||
| + | * MAX_VARCHAR_PRECISION | ||
| + | * MAX_BINARY_PRECISION | ||
| + | * MAX_VARBINARY_PRECISION | ||
| + | * MAX_REAL_PRECISION | ||
| + | * TIMESTAMP_FORMAT_SQL | ||
| + | * TIMESTAMP_FORMAT | ||
| + | |||
| + | === Figure out Data Type Mapping === | ||
| + | * Go over all data types offered in PostgreSQL | ||
| + | * Map types defined in <code>Primitive</code> class | ||
| + | |||
| + | === Implement <code>appendColumnType()</code> method === | ||
| + | This method appends a table column type declaration to a string buffer. | ||
| + | * use logic and mapping to append required column data types to incoming string. | ||
| + | * Test it | ||
Revision as of 13:30, 18 January 2011
PostgreSQL Adapter for NexJ - Extending SQL Schema Manager
- SQLSchemaManager is used in maintaining database schemas (DDL)
Contents
Task Summary
| Task | Status | Test Status |
|---|---|---|
| Extend SQLSchemaManager to support PostgreSQL | DONE | DONE |
| Research and add Maximum column Precision | ||
| Figure out Data Type Mapping | ||
Implement appendColumnType() method
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Implement appendConcatenate() method
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Implement appendPrint() method
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Implement appendUpgradeStepEnd() method
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Implement appendUpgradeStepStart() method
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Implement appendTSExtract() method
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Implement appendTSIncrement() method
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Implement getCreateEtcScriptName() method
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Implement getDefaultIndexspace() method
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Implement getDefaultLongspace() method
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Implement getDefaultTablespace() method
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Implement getDropEtcScriptName() method
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Implement getDynamicSQLAppender() method
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Implement getGUIDExpr() method
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Implement getNowExpr() method
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Implement getSeparator() method
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Implement getSetupEtcScriptName() method
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Task Details
Extend SQLSchemaManager to support PostgreSQL
Create a new class PostgreSQLSchemaManager by extending SQLSchemaManager and implementing all necessary abstract classes
Research and add Maximum column Precision
Following are the Maximum column precisions we might need to establish: (All constants are defined in PostgreSQLAdapter class)
- DEFAULT_FETCH_SIZE
- MAX_CHAR_PRECISION
- MAX_VARCHAR_PRECISION
- MAX_BINARY_PRECISION
- MAX_VARBINARY_PRECISION
- MAX_REAL_PRECISION
- TIMESTAMP_FORMAT_SQL
- TIMESTAMP_FORMAT
Figure out Data Type Mapping
- Go over all data types offered in PostgreSQL
- Map types defined in
Primitiveclass
Implement appendColumnType() method
This method appends a table column type declaration to a string buffer.
- use logic and mapping to append required column data types to incoming string.
- Test it
