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Diffstat (limited to 'src/include/schema.h')
| -rw-r--r-- | src/include/schema.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/include/schema.h b/src/include/schema.h new file mode 100644 index 00000000000..b7467fb18bb --- /dev/null +++ b/src/include/schema.h @@ -0,0 +1,48 @@ +/*- + * Copyright (c) 2008-2012 WiredTiger, Inc. + * All rights reserved. + * + * See the file LICENSE for redistribution information. + */ + +#define WT_SCHEMA_FILENAME "WiredTiger.wt" /* Schema file name */ +#define WT_SCHEMA_URI "file:WiredTiger.wt" /* Schema file URI */ + +#define WT_SCHEMA_VERSION "WiredTiger version" /* Version keys */ +#define WT_SCHEMA_VERSION_STR "WiredTiger version string" + +/* Character constants for projection plans. */ +#define WT_PROJ_KEY 'k' /* Go to key in cursor <arg>. */ +#define WT_PROJ_NEXT 'n' /* Process the next item (<arg> repeats). */ +#define WT_PROJ_REUSE 'r' /* Reuse the previous item (<arg> repeats). */ +#define WT_PROJ_SKIP 's' /* Skip a column in the cursor (<arg> repeats). */ +#define WT_PROJ_VALUE 'v' /* Go to the value in cursor <arg>. */ + +/* + * WT_TABLE -- + * Handle for a logical table. A table consists of one or more column + * groups, each of which holds some set of columns all sharing a primary + * key; and zero or more indices, each of which holds some set of columns + * in an index key that can be used to reconstruct the primary key. + */ +struct __wt_table { + const char *name, *config, *plan; + const char *key_format, *value_format; + + WT_CONFIG_ITEM cgconf, colconf; + + WT_BTREE **colgroup; + WT_BTREE **index; + size_t index_alloc; + + TAILQ_ENTRY(__wt_table) q; + + int cg_complete, idx_complete, is_simple; + int ncolgroups, nindices, nkey_columns; +}; + +/* + * Tables without explicit column groups have a single default column group + * containing all of the columns. + */ +#define WT_COLGROUPS(t) WT_MAX((t)->ncolgroups, 1) |