mirror of
https://github.com/FirebirdSQL/firebird.git
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11495a55fb
Fixed the layering for WITH LOCK and (partially) ANY/ALL predicates. Cleaned up the outdated code that never worked (mapping DISTINCT to an index, some VMS remainings). Wiped out a lot of the pre-ODS11 optimizer logic. Some minor adjustments there. Re-implemented the full outer join from scratch. This resolves CORE-2678 (full outer join cannot use available indices). Resolved CORE-2796: DB_KEY is always zero for external tables. Implemented the core part of the scrollable PSQL cursors. Implementation is still incomplete, but ready for testing. Some other changes I don't recall at the moment ;-) WARNING! The engine may be unstable. Please email me about any issues found.
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/*
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* PROGRAM: JRD Access Method
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* MODULE: ext.h
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* DESCRIPTION: External file access definitions
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#ifndef JRD_EXT_H
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#define JRD_EXT_H
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#include <stdio.h>
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namespace Jrd {
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// External file access block
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class ExternalFile : public pool_alloc_rpt<SCHAR, type_ext>
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{
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public:
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USHORT ext_flags; // Misc and cruddy flags
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USHORT ext_tra_cnt; // How many transactions used the file
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FILE* ext_ifi; // Internal file identifier
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char ext_filename[1];
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};
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const int EXT_readonly = 1; // File could only be opened for read
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const int EXT_last_read = 2; // last operation was read
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const int EXT_last_write = 4; // last operation was write
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} //namespace Jrd
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#endif // JRD_EXT_H
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