4.3BSD - /usr/ingres/source/decomp/globs.h

   1: # include   <tree.h>
   2: # include   <func.h>
   3: # include   <access.h>
   4: # include   "../decomp/decomp.h"
   5: # include   "../ovqp/ovqp.h"
   6: 
   7: /*	@(#)globs.h	8.1	12/31/84	*/
   8: 
   9: 
  10: struct agglist
  11: {
  12:     QTREE   **father;   /* addr of pointer to you */
  13:     QTREE   *agpoint;   /* pointer to aghead */
  14:     QTREE   *agfather;  /* is your father an aggregate? */
  15:     short   agvarno;    /* var # assigned to aggr fnct */
  16: };
  17: 
  18: struct hitlist
  19: {
  20:     QTREE   **trepr;    /* position in tree to be changed */
  21:     short   byno;       /* by-list position */
  22: };
  23: 
  24: struct rang_tab
  25: {
  26:     int     relnum;     /* internal decomp relation number */
  27:     int     rtspec;     /* relspec of relation */
  28:     int     rtstat;     /* relstat of relation */
  29:     int     rtwid;      /* relwidth of relation */
  30:     long        rtcnt;      /* tupcount of relation */
  31:     int     rtaltnum;   /* reserved for distributed decomp */
  32:     char        *rtattmap;  /* reserved for distributed decomp */
  33:     long        rtdcnt;     /* reserved for distributed decomp */
  34:     struct d_range  *rtsrange;  /* reserved for distributed decomp */
  35: };
  36: 
  37: 
  38: /* The following structure reserved for distributed decomp */
  39: /* The order of this has been changed for proper alignment */
  40: struct d_range
  41: {
  42:     int     relnum;
  43:     int     draltnum;
  44:     long        drtupcnt;
  45:     struct d_range  *drnext;
  46:     int     drstat;
  47:     char        drsite[2];
  48: };
  49: 
  50: 
  51: /* structure used by reduction to maintain component pieces */
  52: struct complist
  53: {
  54:     struct complist *nextcomp;  /* next comp piece */
  55:     struct complist *linkcomp;  /* next clause of this comp */
  56:     QTREE       *clause;    /* associated clause */
  57:     int     bitmap;     /* map of all assoc clauses */
  58: };
  59: 
  60: bool    Batchupd;
  61: 
  62: struct desc_tab
  63: {
  64:     int relnum;     /* relation number */
  65:     char    dtmode;     /* status of descriptor */
  66:     char    dtpos;      /* position of last access */
  67:     DESC    desc;       /* descriptor */
  68: };
  69: 
  70: 
  71: struct stacksym
  72: {
  73:     char    s_type;
  74:     char    s_len;
  75:     long    s_value[2];
  76: };              /* stack for OVQP interpreter */
  77: 
  78: 
  79: struct simp
  80: {
  81:     int relop;  /* value of relop in simp clause*/
  82:     int att;    /* attno of attribute */
  83:     SYMBOL  *const; /* pointer to constant value symbol */
  84: };
  85: 
  86: 
  87: struct key
  88: {
  89:     SYMBOL  *keysym;
  90:     int dnumber;
  91: };
  92: 
  93: extern int  Equel;
  94: 
  95: struct
  96: {
  97:         /* OVQP variables */
  98:     char        ov_outtup[MAXTUP];
  99:     char        ov_intup[MAXTUP];
 100:     char        *ov_origtup;
 101:     char        *ov_tend;   /* pts to end of data in ov_outtup */
 102:     short       ov_bopen;   /* TRUE if batch file is open */
 103:     short       ov_targvc;  /* var count in Target list (flags constant Targ. list) */
 104:     short       ov_qualvc;  /* var count in Qual list */
 105:     short       ov_userqry; /* flags a query on the users's result rel */
 106:     short       ov_retrieve;    /* true is a retrieve, else false */
 107:     char        *ov_ovqpbuf;
 108:     short       ov_diffrel; /* true is ov_source and ov_result are different */
 109:     short       ov_agcount; /* count of the # of aggregates in the query */
 110:     short       ov_qvpointer;
 111:     long        ov_intid;
 112:     long        ov_uptid;
 113:     long        *ov_counter;    /* cnts "gets" done in OVQP */
 114:     long        ov_lotid;
 115:     long        ov_hitid;   /* lo & hi limits of scan in OVQP */
 116:     long        ov_tupsfound;   /* counts # tuples which satified the query */
 117:     DESC        *ov_scanr;  /* pts to desc of reln to be scanned */
 118:     DESC        *ov_source; /* 0 if no source for qry, else poshorts to ov_srcdesc */
 119:     DESC        *ov_result; /* 0 if no result for qry, else poshorts to ov_reldesc */
 120:     SYMBOL      **ov_tlist; /* Target LIST */
 121:     SYMBOL      **ov_alist; /* Aggregate LIST */
 122:     SYMBOL      **ov_qlist; /* Query List */
 123:     SYMBOL      **ov_bylist;    /* By List */
 124:     struct stacksym ov_stack[STACKSIZ];
 125:     char        ov_keyl[MAXTUP];
 126:     char        ov_keyh[MAXTUP];
 127:     int     ov_nsimp;   /* Current no. entries in ov_simp vector */
 128:     int     ov_fmode;   /* find-mode determined by strategy */
 129:     struct simp ov_simp[NSIMP];
 130:     struct key  ov_lkey_struct[MAXDOM+1];
 131:     struct key  ov_hkey_struct[MAXDOM+1];
 132: 
 133:         /* DECOMP/OVQP variables */
 134: 
 135:     struct agglist  *de_aggnext;    /* next in aggregate list */
 136:     struct agglist  *de_agglim; /* limit in aggregate list */
 137:     struct hitlist  *de_hnext;
 138:     struct hitlist  *de_hlimit;
 139:     char        de_d_dbu70;
 140:     char        de_d_ovqp70;
 141:     int     de_synconly;
 142:     int     de_error_flag;
 143:     int     de_qvptr;       /* index into available de_qvect space in ovqpnod() */
 144:     SYMBOL      *de_qvect[MAXNODES];
 145:     short       de_newq;        /* OVPQ must devise new strategy */
 146:     short       de_newr;        /* force OVQP to reopen result relation */
 147:     int     de_qmode;       /* flag set to indicate mode of tuple disposition */
 148:     int     de_resultvar;       /* if >= 0 result variable */
 149:     int     de_sourcevar;       /* likewise for source variable */
 150:     char        *de_qbuf;       /* pointer to query buffer */
 151: 
 152: 
 153: 
 154:     QTREE       *de_qle;        /* ptr to QLEND node */
 155:     QTREE       *de_tr;         /* ptr to TREE node */
 156:     int     de_dfiles;      /* number of available file descriptors */
 157:     int     de_dopnfiles;       /* Number of open file descriptors */
 158:     struct desc_tab de_desc[MAXRELN];   /* descriptors available for use */
 159:     struct rang_tab de_rangev[MAXRANGE+2];  /* global range table with extra slot for FREEVAR and SECINDVAR */
 160:     int     de_qry_mode;        /* mode of original query (not nec same as de_qmode) */
 161:     char        de_name_table[FIRSTNUM-1][MAXNAME];
 162:     char        de_num_used[LASTNUM+1];
 163:     char        de_buflag;
 164: } De;
 165: 
 166: short       tTdecomp[100];
 167: # ifdef tTf
 168: # undef tTf
 169: # endif tTf
 170: # define tTf(a, b)  ((b < 0) ? tTdecomp[a] : (tTdecomp[a] & (1 << b)))

Defined variables

Defined struct's

Defined macros

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