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typedef union {
int Node; /* Index of Node */
double dbl; /* real value */
long lng; /* integer value */
char log; /* logical value */
char str[256]; /* string value */
} FFSTYPE;
#define BOOLEAN 258
#define LONG 259
#define DOUBLE 260
#define STRING 261
#define BITSTR 262
#define FUNCTION 263
#define BFUNCTION 264
#define GTIFILTER 265
#define REGFILTER 266
#define COLUMN 267
#define BCOLUMN 268
#define SCOLUMN 269
#define BITCOL 270
#define ROWREF 271
#define NULLREF 272
#define SNULLREF 273
#define OR 274
#define AND 275
#define EQ 276
#define NE 277
#define GT 278
#define LT 279
#define LTE 280
#define GTE 281
#define POWER 282
#define NOT 283
#define INTCAST 284
#define FLTCAST 285
#define UMINUS 286
#define ACCUM 287
#define DIFF 288
extern FFSTYPE fflval;
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