The R Project SVN – R-packages – Diff – /trunk/SQLiteDF/src/sqlite_vector.c

 #include "sqlite_dataframe.h"
 #include <math.h>
 #include "Rmath.h"
 SEXP sdf_get_variable(SEXP sdf, SEXP name) {
     if (!IS_CHARACTER(name)) {
         Rprintf("ERROR: argument is not a string.\n");
         return R_NilValue;
+    }
     char *iname = SDF_INAME(sdf);
     char *varname = CHAR_ELT(name, 0);
-    if (!USE_SDF(iname)) return R_NilValue;
+    if (!USE_SDF(iname, TRUE)) return R_NilValue;
     /* check if sdf & varname w/in that sdf exists */
     sqlite3_stmt *stmt;
     sprintf(g_sql_buf[0], "select [%s] from [%s].sdf_data", varname, iname);
     int res = sqlite3_prepare(g_workspace, g_sql_buf[0], -1, &stmt, 0);
     if (_sqlite_error(res)) return R_NilValue;
     const char *coltype = sqlite3_column_decltype(stmt, 0);
     sqlite3_finalize(stmt);
     SEXP ret, value, class = R_NilValue; int nprotected = 0;
     PROTECT(ret = NEW_LIST(2)); nprotected++;
     /* set list names */
     PROTECT(value = NEW_CHARACTER(2)); nprotected++;
     SET_STRING_ELT(value, 0, mkChar("iname"));
     SET_STRING_ELT(value, 1, mkChar("varname"));
     SET_NAMES(ret, value);
     /* set list values */
     SET_VECTOR_ELT(ret, 0, mkString(iname));
     SET_VECTOR_ELT(ret, 1, mkString(varname));
     /* set class */
     int type = -1;
     if (strcmp(coltype, "text") == 0) class = mkChar("character");
     else if (strcmp(coltype, "double") == 0) class = mkChar("numeric");
     else if (strcmp(coltype, "bit") == 0) class = mkChar("logical");
     else if (strcmp(coltype, "integer") == 0 || strcmp(coltype, "int") == 0) {
         /* determine if int, factor or ordered */
         type = _get_factor_levels1(iname, varname, ret);
         switch(type) {
             case VAR_INTEGER: class = mkChar("integer"); break;
             case VAR_FACTOR: class = mkChar("factor"); break;
             case VAR_ORDERED: class = mkChar("ordered");
+        }
+    }
     if (type != VAR_ORDERED) {
         PROTECT(value = NEW_CHARACTER(2)); nprotected++;
         SET_STRING_ELT(value, 0, mkChar("sqlite.vector"));
         SET_STRING_ELT(value, 1, class);
     } else {
         PROTECT(value = NEW_CHARACTER(3)); nprotected++;
         SET_STRING_ELT(value, 0, mkChar("sqlite.vector"));
         SET_STRING_ELT(value, 1, class);
         SET_STRING_ELT(value, 2, mkChar("factor"));
+    }
     SET_CLASS(ret, value);
     UNPROTECT(nprotected);
     return ret;
+}
 int _get_vector_index_typed_result(sqlite3_stmt *stmt, SEXP *ret, int idx_or_len) {
     int added = 1;
     if (*ret == NULL || *ret == R_NilValue) {
         const char *coltype = sqlite3_column_decltype(stmt, 0);
         if (sqlite3_column_type(stmt, 0) == SQLITE_NULL) {
             added = 0;
+        }
         if (strcmp(coltype, "text") == 0) {
             PROTECT(*ret = NEW_CHARACTER(idx_or_len));
             if (added)
                 SET_STRING_ELT(*ret, 0, mkChar((char *)sqlite3_column_text(stmt, 0)));
         } else if (strcmp(coltype, "double") == 0) {
             PROTECT(*ret = NEW_NUMERIC(idx_or_len));
             if (added) REAL(*ret)[0] = sqlite3_column_double(stmt, 0);
         } else if (strcmp(coltype, "bit") == 0) {
             PROTECT(*ret = NEW_LOGICAL(idx_or_len));
             if (added) INTEGER(*ret)[0] = sqlite3_column_int(stmt, 0);
         } else if (strcmp(coltype, "integer") == 0 ||
                    strcmp(coltype, "int") == 0) {
             /* caller should just copy off the vars level attr for factors */
             PROTECT(*ret = NEW_INTEGER(idx_or_len));
             if (added) INTEGER(*ret)[0] = sqlite3_column_int(stmt, 0);
         } else added = 0;
         UNPROTECT(1);
     } else {
         const char *coltype = sqlite3_column_decltype(stmt, 0);
         if (sqlite3_column_type(stmt, 0) == SQLITE_NULL) {
             added = 0;
         } else if (strcmp(coltype, "text") == 0) {
             SET_STRING_ELT(*ret, idx_or_len,
                     mkChar((char *)sqlite3_column_text(stmt, 0)));
         } else if (strcmp(coltype, "double") == 0) {
             REAL(*ret)[idx_or_len] = sqlite3_column_double(stmt, 0);
         } else if (strcmp(coltype, "bit") == 0) {
             INTEGER(*ret)[idx_or_len] = sqlite3_column_int(stmt, 0);
         } else if (strcmp(coltype, "integer") == 0 ||
                    strcmp(coltype, "int") == 0) {
             /* caller should just copy off the vars level attr for factors */
             INTEGER(*ret)[idx_or_len] = sqlite3_column_int(stmt, 0);
         } else added = 0;
+    }
     return added;
+}
 SEXP sdf_get_variable_length(SEXP svec) {
     char *iname = SDF_INAME(svec);
-    if (!USE_SDF(iname)) return R_NilValue;
+    if (!USE_SDF(iname, TRUE)) return R_NilValue;
     sprintf(g_sql_buf[0], "[%s].sdf_data", iname);
     SEXP ret;
     PROTECT(ret = NEW_INTEGER(1));
     INTEGER(ret)[0] = _get_row_count2(g_sql_buf[0]);
     UNPROTECT(1);
     return ret;
+}
 SEXP sdf_get_variable_index(SEXP svec, SEXP idx) {
     SEXP ret = R_NilValue, tmp;
     char *iname = SDF_INAME(svec), *varname = SVEC_VARNAME(svec);
     int index, idxlen, i, retlen=0, res;
-    if (!USE_SDF(iname)) return R_NilValue;
+    if (!USE_SDF(iname, TRUE)) return R_NilValue;
     /* check if sdf exists */
     sqlite3_stmt *stmt;
     sprintf(g_sql_buf[0], "select [%s] from [%s].sdf_data", varname, iname);
     res = sqlite3_prepare(g_workspace, g_sql_buf[0], -1, &stmt, 0);
     sqlite3_finalize(stmt);
     if (_sqlite_error(res)) { return ret; }
     idxlen = LENGTH(idx);
     if (idxlen < 1) return ret;
     sprintf(g_sql_buf[0], "select [%s] from [%s].sdf_data limit ?,1",
             varname, iname);
     res = sqlite3_prepare(g_workspace, g_sql_buf[0], -1, &stmt, 0);
     /* get data based on index */
     if (IS_NUMERIC(idx)) {
         index = ((int) REAL(idx)[0]) - 1;
         if (index < 0 && idxlen == 1) return ret;
         if (index >= 0) {
             sqlite3_bind_int(stmt, 1, index);
             res = sqlite3_step(stmt);
             if (res == SQLITE_ROW) {
                 retlen = _get_vector_index_typed_result(stmt, &ret, idxlen);
+            }
+        }
         if (index < 0 || res != SQLITE_ROW) {
             /* something wrong w/ 1st idx, and it is quietly ignored. we make
              * a "dummy" call to setup the SEXP */
             sqlite3_bind_int(stmt, 1, 0);
             _get_vector_index_typed_result(stmt, &ret, idxlen - 1);
             retlen = 0;
+        }
         if (idxlen > 1) {
             for (i = 1; i < idxlen; i++) {
                 index = ((int) REAL(idx)[i]) - 1;
                 if (index < 0) continue;
                 sqlite3_reset(stmt);
                 sqlite3_bind_int(stmt, 1, index);
                 res = sqlite3_step(stmt);
                 if (res == SQLITE_ROW)
                     retlen += _get_vector_index_typed_result(stmt, &ret, retlen);
+            }
+        }
     } else if (IS_INTEGER(idx)) {
         /* similar to REAL (IS_NUMERIC) above, except that we don't have
          * to cast idx to int. can't refactor this out, sucks. */
         index = INTEGER(idx)[0] - 1;
         if (index < 0 && idxlen == 1) return ret;
         if (index >= 0) {
             sqlite3_bind_int(stmt, 1, index);
             res = sqlite3_step(stmt);
             if (res == SQLITE_ROW) {
                 retlen = _get_vector_index_typed_result(stmt, &ret, idxlen);
+            }
+        }
         if (index < 0 || res != SQLITE_ROW) {
             /* something wrong w/ 1st idx, and it is quietly ignored. we make
              * a "dummy" call to setup the SEXP */
             sqlite3_bind_int(stmt, 1, 0);
             _get_vector_index_typed_result(stmt, &ret, idxlen - 1);
             retlen = 0;
+        }
         if (idxlen > 1) {
             for (i = 1; i < idxlen; i++) {
                 index = INTEGER(idx)[i] - 1;
                 if (index < 0) continue;
                 sqlite3_reset(stmt);
                 sqlite3_bind_int(stmt, 1, index);
                 sqlite3_step(stmt);
                 retlen += _get_vector_index_typed_result(stmt, &ret, retlen);
+            }
+        }
     } else if (IS_LOGICAL(idx)) {
         /* have to deal with recycling */
         sprintf(g_sql_buf[0], "[%s].sdf_data", iname);
         int veclen = _get_row_count2(g_sql_buf[0]);
         /* find if there is any TRUE element in the vector */
         for (i = 0; i < idxlen && i < veclen; i++) {
             if (LOGICAL(idx)[i]) {
                 sqlite3_bind_int(stmt, 1, i);
                 sqlite3_step(stmt);
                 /* there are at least (idxlen-i) TRUE per cycle of the LOGICAL
                  * index. there are at least (veclen/idxlen) cycles (int div).
                  * at the last cycle, if (veclen%idxlen > 0), there will be
                  * at least (veclen%idxlen - i) if veclen%idxlen > i */
                 retlen = (idxlen-i) * (veclen/idxlen);
                 if (veclen%idxlen > i) retlen += (veclen%idxlen - i);
                 /* create the vector */
                 retlen = _get_vector_index_typed_result(stmt, &ret, retlen);
                 break;
+            }
+        }
         if (i < idxlen && i < veclen) {
             for (i++; i < veclen; i++) {
                 if (LOGICAL(idx)[i%idxlen]) {
                     sqlite3_reset(stmt);
                     sqlite3_bind_int(stmt, 1, i);
                     sqlite3_step(stmt);
                     retlen += _get_vector_index_typed_result(stmt, &ret, retlen);
+                }
+            }
+        }
+    }
     sqlite3_finalize(stmt);
     if (ret != R_NilValue) {
         ret = _shrink_vector(ret, retlen);
         tmp = GET_LEVELS(svec);
         if (tmp != R_NilValue) {
             SET_LEVELS(ret, duplicate(tmp));
             if (LENGTH(GET_CLASS(svec)) == 2) {
                 SET_CLASS(ret, mkString("factor"));
             } else {
                 PROTECT(tmp = NEW_CHARACTER(2));
                 SET_STRING_ELT(tmp, 0, mkChar("ordered"));
                 SET_STRING_ELT(tmp, 1, mkChar("factor"));
                 UNPROTECT(1);
+            }
+        }
+    }
     return ret;
+}
+/* the global accumulator should be safe if we only do 1 cummulative or
+ * aggregate at any time. it won't work for stuffs like "select max(col)-min(col)
+ * from sdf_data". */
+static double g_accumulator = 0.0; /* accumulator var for cumsum, cumprod, etc. */
+static int g_start = 0;            /* flag for start of cummulation */
+static int g_narm = 0;             /* for Summary group */
 SEXP sdf_do_variable_math(SEXP func, SEXP vector, SEXP extra_args, SEXP _nargs) {
     char *iname, *iname_src, *varname_src, *funcname;
     int namelen, res, nargs;
     sqlite3_stmt *stmt;
     /* get data from arguments (function name and sqlite.vector stuffs) */
     funcname = CHAR_ELT(func, 0);
     iname_src = SDF_INAME(vector);
     varname_src = SVEC_VARNAME(vector);
     nargs = INTEGER(_nargs)[0];
-    if (!USE_SDF(iname_src)) return R_NilValue;
+    if (!USE_SDF(iname_src, TRUE)) return R_NilValue;
     /* check nargs */
     if (nargs > 2) {
         Rprintf("Error: Don't know how to handle Math functions w/ more than 2 args\n");
         return R_NilValue;
+    }
     /* create a new sdf, with 1 column named V1 */
     iname = _create_sdf_skeleton2(R_NilValue, &namelen);
     if (iname == NULL) return R_NilValue;
     sprintf(g_sql_buf[0], "create table [%s].sdf_data ([row name] text, "
             "V1 double)", iname);
     res = _sqlite_exec(g_sql_buf[0]);
     _sqlite_error(res);
     /* insert into <newsdf>.col, row.names select func(col), rownames */
     sprintf(g_sql_buf[0], "insert into [%s].sdf_data([row name], V1) "
             "select [row name], %s([%s]) from [%s].sdf_data", iname, funcname,
             varname_src, iname_src);
     res = sqlite3_prepare(g_workspace, g_sql_buf[0], -1, &stmt, 0);
     if (_sqlite_error(res)) {
         sprintf(g_sql_buf[0], "detach %s", iname);
         _sqlite_exec(g_sql_buf[0]);
         /* we will return a string with the file name, and do file.remove
          * at R */
         iname[namelen] = '.';
         return mkString(iname);
+    }
+    g_accumulator = 0.0;   /* initialize accumulator */
+    g_start = 1;           /* flag that we are at start of accumulating */
     sqlite3_step(stmt);
     sqlite3_finalize(stmt);
     /* create sqlite.vector sexp */
     SEXP ret, value; int nprotected = 0;
     PROTECT(ret = NEW_LIST(2)); nprotected++;
     /* set list names */
     PROTECT(value = NEW_CHARACTER(2)); nprotected++;
     SET_STRING_ELT(value, 0, mkChar("iname"));
     SET_STRING_ELT(value, 1, mkChar("varname"));
     SET_NAMES(ret, value);
     /* set list values */
     SET_VECTOR_ELT(ret, 0, mkString(iname));
     SET_VECTOR_ELT(ret, 1, mkString("V1"));
     /* set sexp class */
     PROTECT(value = NEW_CHARACTER(2)); nprotected++;
     SET_VECTOR_ELT(value, 0, mkChar("sqlite.vector"));
     SET_VECTOR_ELT(value, 1, mkChar("numeric"));
     SET_CLASS(ret, value);
     UNPROTECT(nprotected);
     return ret;
+}
+SEXP sdf_do_variable_summary(SEXP func, SEXP vector, SEXP na_rm) {
+    char *iname_src, *varname_src, *funcname;
+    int res;
+    sqlite3_stmt *stmt;
+    double _ret = NA_REAL; SEXP ret;
+    /* get data from arguments (function name and sqlite.vector stuffs) */
+    funcname = CHAR_ELT(func, 0);
+    iname_src = SDF_INAME(vector);
+    varname_src = SVEC_VARNAME(vector);
+    if (!USE_SDF(iname_src, TRUE)) return R_NilValue;
+    g_narm = LOGICAL(na_rm)[0];
+    if (strcmp(funcname, "range") == 0) {
+        /* special handling for range. use min then max */
+        g_start = 1;
+        g_accumulator = 0.0;
+        sprintf(g_sql_buf[0], "select min_df([%s]) from [%s].sdf_data", varname_src, iname_src);
+        res = sqlite3_prepare(g_workspace, g_sql_buf[0], -1, &stmt, NULL);
+        if (_sqlite_error(res)) return R_NilValue;
+        sqlite3_step(stmt); sqlite3_finalize(stmt);
+        _ret = g_accumulator;
+        if (R_IsNA(_ret) && !g_narm) {
+            PROTECT(ret = NEW_NUMERIC(2));
+            REAL(ret)[0] = REAL(ret)[1] = R_NaReal;
+            goto __sdf_do_variable_summary_out;
+        }
+        g_start = 1;
+        g_accumulator = 0.0;
+        sprintf(g_sql_buf[0], "select max_df([%s]) from [%s].sdf_data", varname_src, iname_src);
+        res = sqlite3_prepare(g_workspace, g_sql_buf[0], -1, &stmt, NULL);
+        if (_sqlite_error(res)) return R_NilValue;
+        sqlite3_step(stmt); sqlite3_finalize(stmt);
+        /* if there is NA, then the if above should have caught it already */
+        PROTECT(ret = NEW_NUMERIC(2));
+        REAL(ret)[0] = _ret;
+        REAL(ret)[1] = g_accumulator;
+    } else {
+        g_start = 1;  /* we'll use these instead of sqlite3_aggregate_context */
+        g_accumulator = 0.0;
+        sprintf(g_sql_buf[0], "select %s_df([%s]) from [%s].sdf_data", funcname, varname_src, iname_src);
+        res = sqlite3_prepare(g_workspace, g_sql_buf[0], -1, &stmt, NULL);
+        if (_sqlite_error(res)) return R_NilValue;
+        res = sqlite3_step(stmt); sqlite3_finalize(stmt);
+        if (strcmp(funcname, "all") == 0 || strcmp(funcname, "any") == 0) {
+            PROTECT(ret = NEW_LOGICAL(1));
+            if (R_IsNA(g_accumulator)) LOGICAL(ret)[0] = NA_INTEGER;
+            else LOGICAL(ret)[0] = !(g_accumulator == 0);
+        } else {
+            PROTECT(ret = NEW_NUMERIC(1));
+            REAL(ret)[0] = g_accumulator;
+        }
+    }
+__sdf_do_variable_summary_out:
+    UNPROTECT(1);
+    return ret;
+}
 /****************************************************************************
  * VECTOR MATH/OPS/GROUP OPERATIONS
  ****************************************************************************/
 int __vecmath_checkarg(sqlite3_context *ctx, sqlite3_value *arg, double *value) {
     int ret = 1;
     if (sqlite3_value_type(arg) == SQLITE_NULL) {
         sqlite3_result_null(ctx);
         ret = 0;
     } else {
         if (sqlite3_value_type(arg) == SQLITE_INTEGER)
             *value = sqlite3_value_int(arg);
         else *value = sqlite3_value_double(arg);
+    }
     return ret;
+}
 #define SQLITE_MATH_FUNC1(name, func) static void __vecmath_ ## name(\
         sqlite3_context *ctx, int argc, sqlite3_value **argv) { \
     double value; \
     if (__vecmath_checkarg(ctx, argv[0], &value)) { \
         sqlite3_result_double(ctx, func(value)); \
     }  \
+}
+#define SQLITE_MATH_FUNC_CUM(name, func) static void __vecmath_ ## name(\
+        sqlite3_context *ctx, int argc, sqlite3_value **argv) { \
+    double value; \
+    if (__vecmath_checkarg(ctx, argv[0], &value)) { \
+        if (g_start) { g_start = 0; g_accumulator = value; } \
+        else g_accumulator = func(g_accumulator, value); \
+        sqlite3_result_double(ctx, g_accumulator); \
+    }  \
+}
 /* SQLITE_MATH_FUNC1(abs, abs)   in SQLite */
 SQLITE_MATH_FUNC1(sign, sign)   /* in R */
 SQLITE_MATH_FUNC1(sqrt, sqrt)
 SQLITE_MATH_FUNC1(floor, floor)
 SQLITE_MATH_FUNC1(ceiling, ceil)
 SQLITE_MATH_FUNC1(trunc, ftrunc) /* in R */
 /* SQLITE_MATH_FUNC1(round, )   in SQLite */
 /* SQLITE_MATH_FUNC1(signif, ) 2 arg */
 SQLITE_MATH_FUNC1(exp, exp)
 /* SQLITE_MATH_FUNC1(log, ) 2 arg */
 SQLITE_MATH_FUNC1(cos, cos)
 SQLITE_MATH_FUNC1(sin, sin)
 SQLITE_MATH_FUNC1(tan, tan)
 SQLITE_MATH_FUNC1(acos, acos)
 SQLITE_MATH_FUNC1(asin, asin)
 SQLITE_MATH_FUNC1(atan, atan)
 SQLITE_MATH_FUNC1(cosh, cosh)
 SQLITE_MATH_FUNC1(sinh, sinh)
 SQLITE_MATH_FUNC1(tanh, tanh)
 SQLITE_MATH_FUNC1(acosh, acosh)  /* nowhere in include?? */
 SQLITE_MATH_FUNC1(asinh, asinh)  /* nowhere in include?? */
 SQLITE_MATH_FUNC1(atanh, atanh)  /* nowhere in include?? */
 SQLITE_MATH_FUNC1(lgamma, lgammafn) /* in R */
 SQLITE_MATH_FUNC1(gamma, gammafn) /* in R */
 /* SQLITE_MATH_FUNC1(gammaCody, gammaCody)   * in R ?? */
 SQLITE_MATH_FUNC1(digamma, digamma) /* in R */
 SQLITE_MATH_FUNC1(trigamma, trigamma) /* in R */
+#define SUM(a, b)  (a) + (b)
+#define PROD(a, b) (a) * (b)
+#define MIN(a, b) ((a) <= (b)) ? (a) : (b)
+#define MAX(a, b) ((a) >= (b)) ? (a) : (b)
+#define ALL(a, b) (((a) == 0) || ((b) == 0)) ? 0 : 1
+#define ANY(a, b) (((a) == 0) && ((b) == 0)) ? 0 : 1
+SQLITE_MATH_FUNC_CUM(cumsum, SUM)
+SQLITE_MATH_FUNC_CUM(cumprod, PROD)
+SQLITE_MATH_FUNC_CUM(cummin, MIN)
+SQLITE_MATH_FUNC_CUM(cummax, MAX)
+#define SQLITE_SUMMARY_FUNC(name, func) static void __vecsummary_ ## name(\
+        sqlite3_context *ctx, int argc, sqlite3_value **argv) { \
+    double value; \
+    if (!g_narm && R_IsNA(g_accumulator)) return; /* NA if na.rm=F & NA found */ \
+    if (sqlite3_value_type(argv[0]) != SQLITE_NULL) {  \
+        if (sqlite3_value_type(argv[0]) == SQLITE_INTEGER) {  \
+            int tmp = sqlite3_value_int(argv[0]); \
+            value = (tmp == NA_INTEGER) ? R_NaReal : tmp; \
+        } else value = sqlite3_value_double(argv[0]);  \
+        if (R_IsNA(value)) { \
+            if (!g_narm) g_accumulator = value; return; \
+        } else if (g_start) { g_start = 0; g_accumulator = value; } \
+        else g_accumulator = func(g_accumulator, value); \
+    } \
+}
+SQLITE_SUMMARY_FUNC(all_df, ALL)
+SQLITE_SUMMARY_FUNC(any_df, ANY)
+SQLITE_SUMMARY_FUNC(sum_df, SUM)
+SQLITE_SUMMARY_FUNC(prod_df, PROD)
+SQLITE_SUMMARY_FUNC(min_df, MIN)
+SQLITE_SUMMARY_FUNC(max_df, MAX)
+static void __vecsummary_finalize(sqlite3_context *ctx) {
+    /* g_accumulator already summarizes it. just return that */
+    sqlite3_result_double(ctx, g_accumulator);
+}
 #define VMENTRY1(func)  {#func, __vecmath_ ## func}
+#define VSENTRY1(func)  {#func, __vecsummary_ ## func}
 void __register_vector_math() {
     int i, res;
     static const struct {
         char *name;
         void (*func)(sqlite3_context*, int, sqlite3_value**);
     } arr_func1[] = {
         VMENTRY1(sign),
         VMENTRY1(sqrt),
         VMENTRY1(floor),
         VMENTRY1(ceiling),
         VMENTRY1(trunc),
         VMENTRY1(exp),
         VMENTRY1(cos),
         VMENTRY1(sin),
         VMENTRY1(tan),
         VMENTRY1(acos),
         VMENTRY1(asin),
         VMENTRY1(atan),
         VMENTRY1(cosh),
         VMENTRY1(sinh),
         VMENTRY1(tanh),
         VMENTRY1(acosh),
         VMENTRY1(asinh),
         VMENTRY1(atanh),
         VMENTRY1(lgamma),
         VMENTRY1(gamma),
         VMENTRY1(digamma),
-        VMENTRY1(trigamma)
+        VMENTRY1(trigamma),
+        VMENTRY1(cumsum),
+        VMENTRY1(cumprod),
+        VMENTRY1(cummin),
+        VMENTRY1(cummax)
+    }, arr_sum1[] = {
+        VSENTRY1(all_df),  /* can't override sum, min, max */
+        VSENTRY1(any_df),
+        VSENTRY1(sum_df),
+        VSENTRY1(prod_df),
+        VSENTRY1(min_df),
+        VSENTRY1(max_df)
     };
-    int func1_len = sizeof(arr_func1) / sizeof(arr_func1[0]);
+    int len = sizeof(arr_func1) / sizeof(arr_func1[0]);
-    for (i = 0; i < func1_len; i++) {
+    for (i = 0; i < len; i++) {
         res = sqlite3_create_function(g_workspace, arr_func1[i].name, 1,
                 SQLITE_ANY, NULL, arr_func1[i].func, NULL, NULL);
         _sqlite_error(res);
+    }
+    len = sizeof(arr_sum1) / sizeof(arr_sum1[0]);
+    for (i = 0; i < len; i++) {
+        res = sqlite3_create_function(g_workspace, arr_sum1[i].name, 1,
+                SQLITE_ANY, NULL, NULL, arr_sum1[i].func, __vecsummary_finalize);
+        _sqlite_error(res);
+    }
+}

The R Project SVN R-packages

(root)/trunk/SQLiteDF/src/sqlite_vector.c – Rev 3308 → 3324