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| protected abstract || String getDefaultLongspace() ||--- || not started || ---
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| protected abstract || void appendColumnType(StringBuffer buf, Column column) || it changes the syntax of creating table depends on the differences in data types || Need Opt. || ---
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| public abstract ||void analyzeTable(Table table) ||runs when executing <code> DatabaseSchemaTool.java</code> (through deploying the model ?)|| not started || ---
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| protected abstract || void appendUpgradeStepStart(StringBuffer buf, RelationalSchema schema, SchemaVersion version) ||--- || not started || ---
