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49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
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New information items
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Author:
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Vlad Horsun <hvlad at users.sourceforge.net>
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New item for isc_database_info
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isc_info_active_tran_count :
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return number of currently active transactions
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New item for isc_transaction_info enhancements:
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1. isc_info_tra_oldest_interesting :
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return number of oldest interesting transaction when current
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transaction started. For snapshot transactions this is also the
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number of oldest transaction in the private TIP copy
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2. isc_info_tra_oldest_active
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for read-committed transaction return number of current transaction
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for other transactions return number of oldest active transaction
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when current transaction started
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3. isc_info_tra_oldest_snapshot
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return minimum number of tra_oldest_active of all active transactions
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when current transaction started.
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This value is used as garbage collection threshold
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4. isc_info_tra_isolation
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return transaction isolation mode of current transaction.
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format of returned clumplets is following:
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isc_info_tra_isolation,
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1, isc_info_tra_consistency | isc_info_tra_concurrency
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2, isc_info_tra_read_committed,
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isc_info_tra_no_rec_version | isc_info_tra_rec_version
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i.e. for read committed transactions returned 2 items while for
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other transactions returned 1 item
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5. isc_info_tra_access
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return read-write access mode of current transaction.
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format of returned clumplets is following:
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isc_info_tra_access, 1, isc_info_tra_readonly | isc_info_tra_readwrite
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6. isc_info_tra_lock_timeout
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return lock timeout of current transaction
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