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Annotation of 43BSD/ingres/source/h/ingres.h, revision 1.1

1.1     ! root        1: 
        !             2: /*
        !             3: **  INGRES.H -- basic header file for ingres.
        !             4: **
        !             5: **     See also aux.h for definitions used by some but not all.
        !             6: **
        !             7: **     Version:
        !             8: **             @(#)ingres.h    8.4     12/8/85
        !             9: */
        !            10: 
        !            11: # ifndef MAXNAME
        !            12: 
        !            13: 
        !            14: /*
        !            15: **  Some generally useful stuff.
        !            16: */
        !            17: 
        !            18: # include <useful.h>
        !            19: 
        !            20: 
        !            21:  
        !            22: /*
        !            23: **     Definition of machine type
        !            24: **
        !            25: **     Currently the default is to the 32 bits existant on VAX 11/780s.
        !            26: */
        !            27: 
        !            28: # ifndef       sun
        !            29: # define       VAX
        !            30: # endif
        !            31: 
        !            32: # include <trace.h>
        !            33: 
        !            34: /*
        !            35: **     INGRES manifest constants
        !            36: **
        !            37: **     These constants are manifest to the operation of the entire
        !            38: **     system.  If anything
        !            39: **     is changed part or all of the system will stop working.
        !            40: **     The values have been carefully chosen and are not intended
        !            41: **     to be modifiable by users.
        !            42: */
        !            43: 
        !            44: # define       MAXDOM          50              /* max # + 1 of doms in a relation */
        !            45: # define       MAXNAME         12              /* max size of a name (in bytes) */
        !            46: # define       MAXVAR          10              /* max # of variables */
        !            47: # define       MAXKEYS         6               /* max # of keys in secondary index */
        !            48: # define       MAXAGG          50              /* max number of aggs in a qry */
        !            49: # define       STACKSIZ        20              /* max depth for arith. expr. stacks */
        !            50: 
        !            51: # define       i_1             char
        !            52: # define       i_2             short
        !            53: # define       i_4             long
        !            54: # define       c_1             char
        !            55: # define       c_2             char
        !            56: # define       c_12            char
        !            57: # define       c_16            char
        !            58: 
        !            59: /*
        !            60: **     RELATION relation struct
        !            61: **
        !            62: **     The RELATION relation contains one tuple for each relation
        !            63: **     in the database.  This relation contains information which
        !            64: **     describes how each relation is actually stored in the
        !            65: **     database, who the owner is, information about its size,
        !            66: **     assorted operation information, etc.
        !            67: */
        !            68: 
        !            69: # define       RELID           1       /* domain for setkey */
        !            70: # define       RELOWNER        2
        !            71: 
        !            72: struct relation
        !            73: {
        !            74:        c_12    relid[MAXNAME]; /* relation name        */
        !            75:        c_2     relowner[2];    /* code of relation owner */
        !            76:        i_1     relspec;        /* storage mode of relation     */
        !            77:                                /* M_HEAP  unsorted paged heap  */
        !            78:                                /* -M_HEAP compressed heap      */
        !            79:                                /* M_ISAM  isam                 */
        !            80:                                /* -M_ISAM compressed isam      */
        !            81:                                /* M_HASH  hashed               */
        !            82:                                /* -M_HASH compressed hash      */
        !            83:        i_1     relindxd;       /* -1 rel is an index, 0 not indexed, 1 indexed */
        !            84:        i_2     relstat2;       /* more status bits */
        !            85:        i_2     relstat;        /* relation status bits */
        !            86:        i_4     relsave;        /*unix time until which relation is saved*/
        !            87:        i_4     reltups;        /*number of tuples in relation  */
        !            88:        i_2     relatts;        /*number of attributes in relation      */
        !            89:        i_2     relwid;         /*width (in bytes) of relation  */
        !            90:        i_4     relprim;        /*no. of primary pages in relation*/
        !            91:        i_4     relfree;        /* head of freelist (b-trees only) */
        !            92:        i_4     relstamp;       /* time of last mod*/
        !            93:        i_2     reldim;         /* ordering dimension */
        !            94: };
        !            95: 
        !            96: 
        !            97: /*
        !            98: **     ATTRIBUTE relation struct
        !            99: **
        !           100: **     The ATTRIBUTE relation contains one tuple for each domain
        !           101: **     of each relation in the database.  This relation describes
        !           102: **     the position of each domain in the tuple, its format,
        !           103: **     its length, and whether or not it is used in part of the key.
        !           104: */
        !           105: 
        !           106: # define       ATTRELID        1
        !           107: # define       ATTOWNER        2
        !           108: # define       ATTID           3
        !           109: # define       ATTNAME         4
        !           110: 
        !           111: 
        !           112: struct attribute
        !           113: {
        !           114:        c_12    attrelid[MAXNAME];      /*relation name of which this is an attr */
        !           115:        c_2     attowner[2];    /* code of relation owner */
        !           116:        i_2     attid;          /*domain number (from 1 to relatts)     */
        !           117:        c_12    attname[MAXNAME];       /*alias for this domain*/
        !           118:        i_2     attoff;         /*offset in tuple (no. of bytes*/
        !           119:        i_1     attfrmt;        /* INT, FLOAT, CHAR (in symbol.h) */
        !           120:        i_1     attfrml;        /* unsigned integer no of bytes */
        !           121:        i_1     attxtra;        /* flag indicating whether this dom is part of a key */
        !           122: };
        !           123: 
        !           124: /*
        !           125: **     tuple id struct
        !           126: **
        !           127: **     We want the line_id to be in the low-order of a long, in
        !           128: **     order to make index work efficiently; since the order
        !           129: **     of halfwords is reversed in a VAX, this is dependent...
        !           130: */
        !           131: 
        !           132: struct tup_id
        !           133: {
        !           134: # ifdef VAX
        !           135:        c_1     line_id, pg2, pg1, pg0;
        !           136: # else
        !           137:        c_1     pg0, pg1, pg2, line_id;
        !           138: # endif
        !           139: };
        !           140: 
        !           141: typedef struct tup_id  TID;
        !           142: 
        !           143: typedef union
        !           144: {
        !           145:        long    ltid;
        !           146:        TID     s_tupid;
        !           147: } tid_type;
        !           148: 
        !           149: 
        !           150: # include <range.h>            /* to get the descriptor struct */
        !           151: 
        !           152: 
        !           153: /* modes to find */
        !           154: # define       NOKEY           1       /* scan entire relation */
        !           155: # define       EXACTKEY        2
        !           156: # define       LRANGEKEY       3       /* low range key */
        !           157: # define       FULLKEY         4       /* forces full key comparison */
        !           158: # define       HRANGEKEY       5       /* high range key */
        !           159: # define       BTREEKEY        6       /* search btree with  exact lid keys */
        !           160: # define       BTREERANGE      7       /* use btree range to aid search */
        !           161: 
        !           162: /*
        !           163: **     anytype union -- union of ingres types
        !           164: */
        !           165: 
        !           166: union anytype
        !           167: {
        !           168:        char            i1type;
        !           169:        short           i2type;
        !           170:        long            i4type;
        !           171:        float           f4type;
        !           172:        double          f8type;
        !           173:        char            c0type[1];      /* the 1 is bogus, only needs 
        !           174:                                         * starting address
        !           175:                                         */
        !           176:        char            *cptype;
        !           177:        char            **cpptype;
        !           178: };
        !           179: 
        !           180: typedef union anytype  ANYTYPE;
        !           181: 
        !           182: 
        !           183: /*
        !           184: **  Definitions for interface to the control module.
        !           185: */
        !           186: 
        !           187: extern char    Qbuf[];
        !           188: 
        !           189: /* structures for user defined delimiters */
        !           190: 
        !           191: # define       BITS            8
        !           192: # define       ACHARS          128
        !           193: # define       BITMAPLEN       ACHARS/ BITS
        !           194: 
        !           195: 
        !           196: struct dmap
        !           197: {
        !           198:        int             order;  /* order in bitmap list */
        !           199:        char            bits[ACHARS];/* 16 8-bit chars, each bits is one ascii char */
        !           200:        int             type;   /* 0 = ONE, 1 = ZEROMORE */
        !           201:        struct dmap     *next;  /* pointer to next map */
        !           202: };
        !           203: typedef struct dmap DMAP;
        !           204: 
        !           205: struct delimlist 
        !           206: {
        !           207:        char                    group[12];
        !           208:        char                    delim[12];
        !           209:        struct dmap             *maptr;         /* pointer to map queue */
        !           210:        struct delimlist        *back;          /* pointer to delim after */
        !           211: };
        !           212: typedef struct delimlist DELIMLIST;
        !           213: 
        !           214: struct delim_tup
        !           215: {
        !           216:        int     order;
        !           217:        char    group[12];
        !           218:        char    delim[12];
        !           219:        int     type;
        !           220:        char    bitmap[16];
        !           221: };
        !           222: 
        !           223: typedef struct delim_tup DELIM_TUP;
        !           224: 
        !           225: 
        !           226: 
        !           227: /*     structure for saving the header fields */
        !           228: 
        !           229: struct hdrinfo
        !           230: {
        !           231:        int             len;
        !           232:        struct hdrinfo  *next;
        !           233: } ;
        !           234: 
        !           235: typedef struct hdrinfo HDRINFO;
        !           236: 
        !           237: 
        !           238: # endif MAXNAME
        !           239: 

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