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src/backend/access/transam
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There are two JSON data types: <type>json</> and <type>jsonb</>.
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Both accept <emphasis>almost</emphasis> identical sets of values as
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input. The major practical difference is one of efficiency. The
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- <type>json</> data type stores an exact copy of the the input text,
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+ <type>json</> data type stores an exact copy of the input text,
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which processing functions must continually reparse, while
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<type>jsonb</> data is stored in a decomposed binary format that
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makes it slightly less efficient to input due to added serialization
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</indexterm>
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<title>Logical Decoding</title>
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<para>
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- Logical decoding is the the process of extracting all persistent changes
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+ Logical decoding is the process of extracting all persistent changes
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to a database's tables into a coherent, easy to understand format which
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can be interpreted without detailed knowledge of the database's internal
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state.
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* has progressed. There is a small fixed number of insertion locks,
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* determined by the num_xloginsert_locks GUC. When an inserter crosses a
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* page boundary, it updates the value stored in the lock to the how far it
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- * has inserted, to allow the the previous buffer to be flushed.
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+ * has inserted, to allow the previous buffer to be flushed.
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*
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* Holding onto an insertion lock also protects RedoRecPtr and
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* fullPageWrites from changing until the insertion is finished.
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