ING_DB
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Oliver Lehmann
parent
fff9366d97
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/* This header file contains the external (global) declarations */
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/* of variables and structures as well as the manifest constants */
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/* particular to OVQP. */
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/* */
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/* By convention global variable identifiers are spelled with */
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/* an initial capital letter; manifest constants are in caps */
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/* completely. */
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/* */
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/* Manifest constants */
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# define AAtTFLAG 'O' /* trace flag */
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# define LBUFSIZE 850 /* buffer size for holding qry list */
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/* and concat and ascii buffers */
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# define NSIMP 15 /* maximum no. of "simple clauses" */
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/* allowed in Qual list */
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/* (see "strategy" portion) */
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# ifndef STACKSIZ
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# define STACKSIZ 20 /* Stack size for interpreter */
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# endif
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# define MAXNODES (2 * MAXDOM) + 50
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/* max nodes in Qvect */
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/* symbolic values for GETNXT parameter of fcn GET */
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# define CURTUP 0 /* get tuple specified by tid */
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# ifndef NXTTUP
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# define NXTTUP 1 /* get nxt tuple after one specified by tid */
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# endif
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/* symbolic values for CHECKDUPS param of fcn INSERT */
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# define DUPS 0 /* allow a duplicate tuple to be inserted */
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# define NODUPS 1 /* check for and avoid inserting */
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/* a duplicate (if possible) */
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# define TIDTYPE INT
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# define TIDLEN 4
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# define CNTLEN 4 /* counter for agg computations */
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# define CNTTYPE INT /* counter type */
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# define ANYLEN 2 /* length for opANY */
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# define ANYTYPE INT /* type for opANY */
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/* error codes for errors caused by user query ie. not AAsyserrs */
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# define LISTFULL 4100 /* postfix query list full */
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# define BADCONV 4101 /* */
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# define BADUOPC 4102 /* Unary operator not allowed on */
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/* char fields */
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# define BADMIX 4103 /* can't assign, compare or operate */
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/* a numberic with a char */
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# define BADSUMC 4104 /* can't sum char domains (agg) */
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# define BADAVG 4105 /* can't avg char domains (agg) */
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# define STACKOVER 4106 /* interpreter stack overflow */
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# define CBUFULL 4107 /* not enough space for concat or */
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/* ascii operation */
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# define BADCHAR 4108 /* arithmetic operation on two */
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/* character fields */
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# define NUMERIC 4109 /* numeric field in a character op */
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# define FLOATEXCEP 4110 /* floating point exception */
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# define CHARCONVERT 4111 /* bad ascii to numeric conversion */
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# define NODOVFLOW 4112 /* node vector overflow */
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# define BADSECINDX 4199 /* found a 6.0 sec index */
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struct _stringp_
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{
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char *stringp;
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};
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typedef struct _stringp_ STRINGP;
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struct stacksym
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{
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char s_type;
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char s_len;
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# ifdef BIT_32
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short s_alignment;
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# endif
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char s_value[sizeof (double)];
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};
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extern char Outtup[MAXTUP];
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extern char Intup[MAXTUP];
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extern char *Origtup;
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extern long Intid;
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extern long Uptid;
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extern int Ov_qmode; /* flag set to indicate tuple mode */
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extern int Eql; /* EQL flag set by initproc */
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extern int Bopen; /* TRUE if batch file is open */
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extern DESC *Scanr; /* desc of reln to be scanned, */
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/* (i.e. either Srcdesc or Indesc) */
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extern DESC *Source; /* 0 if no source for qry, */
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/* else points to Srcdesc */
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extern DESC *Result; /* 0 if no result for qry, */
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/* else points to Reldesc */
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extern long *Counter; /* cnts "gets" done in OVQP */
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extern char *Tend; /* pts to end of data in Outtup */
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extern struct symbol **Tlist;
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extern struct symbol **Alist;
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extern struct symbol **Qlist;
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extern struct symbol **Bylist;
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extern int Newq; /* flags new user query to OVQP */
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extern long Lotid; /* lo limits of scan in OVQP */
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extern long Hitid; /* hi limits of scan in OVQP */
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extern struct stacksym Stack[STACKSIZ];/* stack for OVQP interpreter */
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extern int Buflag; /* flags a batch update situation */
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/* (Ov_qmode != mdRETR) */
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extern int Targvc; /* var count in Target list */
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/* (flags constant Targ. list) */
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extern int Qualvc; /* var count in Qual list */
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extern int Userqry; /* flags a query on the result rel */
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extern int Retrieve; /* true is a retrieve, else false */
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extern int Diffrel; /* true if */
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/* Source and Result are different */
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extern int Agcount; /* count # of aggs in the query */
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extern long Tupsfound; /* counts # tuples */
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/* which satified the query */
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extern int R_decomp; /* file for reading from decomp */
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extern int W_decomp; /* file for writing to decomp */
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extern struct pipfrmt Inpipe;
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extern struct pipfrmt Outpipe;
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extern int Qvpointer;
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