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| static int | cmp_int (const void *a, const void *b) |
| | Integer comparison function for qsort. More...
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| static int | gbox_ndims (const GBOX *gbox) |
| | Given that geodetic boxes are X/Y/Z regardless of the underlying geometry dimensionality and other boxes are guided by HAS_Z/HAS_M in their dimesionality, we have a little utility function to make it easy. More...
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| void | gserialized_compute_stats (VacAttrStats *stats, AnalyzeAttrFetchFunc fetchfunc, int sample_rows, double total_rows, int mode) |
| | The gserialized_analyze_nd sets this function as a callback on the stats object when called by the ANALYZE command. More...
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| static int | nd_box_array_distribution (const ND_BOX **nd_boxes, int num_boxes, const ND_BOX *extent, int ndims, double *distribution) |
| | Calculate how much a set of boxes is homogenously distributed or contentrated within one dimension, returning the range_quintile of of the overlap counts per cell in a uniform partition of the extent of the dimension. More...
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| static int | nd_box_expand (ND_BOX *nd_box, double expansion_factor) |
| | Expand an ND_BOX ever so slightly. More...
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| static void | nd_box_from_gbox (const GBOX *gbox, ND_BOX *nd_box) |
| | Set the values of an ND_BOX from a GBOX. More...
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| int | nd_box_init (ND_BOX *a) |
| | Zero out an ND_BOX. More...
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| static int | nd_box_init_bounds (ND_BOX *a) |
| | Prepare an ND_BOX for bounds calculation: set the maximum values to the smallest thing possible and the mininum values to the largest. More...
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| int | nd_box_intersects (const ND_BOX *a, const ND_BOX *b, int ndims) |
| | Return true if ND_BOX a overlaps b, false otherwise. More...
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| static int | nd_box_merge (const ND_BOX *source, ND_BOX *target) |
| | Expand the bounds of target to include source. More...
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| int | nd_box_overlap (const ND_STATS *nd_stats, const ND_BOX *nd_box, ND_IBOX *nd_ibox) |
| | What stats cells overlap with this ND_BOX? Put the lowest cell addresses in ND_IBOX->min and the highest in ND_IBOX->max. More...
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| double | nd_box_ratio_overlaps (const ND_BOX *b1, const ND_BOX *b2, int ndims) |
| | Return the proportion of b2 that is covered by b1. More...
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| int | nd_increment (ND_IBOX *ibox, int ndims, int *counter) |
| | Given an n-d index array (counter), and a domain to increment it in (ibox) increment it by one, unless it's already at the max of the domain, in which case return false. More...
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| int | nd_stats_value_index (const ND_STATS *stats, const int *indexes) |
| | Given a position in the n-d histogram (i,j,k) return the position in the 1-d values array. More...
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| static int | range_quintile (int *vals, int nvals) |
| | The difference between the fourth and first quintile values, the "inter-quintile range". More...
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| PGDLLEXPORT Datum | Spatialset_analyze (PG_FUNCTION_ARGS) |
| | Compute the statistics for spatial set columns. More...
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| void | spatialset_compute_stats (VacAttrStats *stats, AnalyzeAttrFetchFunc fetchfunc, int sample_rows, double total_rows) |
| | Compute the statistics for spatial set columns (callback function) More...
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| static double | total_double (const double *vals, int nvals) |
| | Return the sum of values of the double array. More...
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| PGDLLEXPORT Datum | Tpoint_analyze (PG_FUNCTION_ARGS) |
| | Compute the statistics for temporal point columns. More...
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| void | tpoint_compute_stats (VacAttrStats *stats, AnalyzeAttrFetchFunc fetchfunc, int sample_rows, double total_rows) |
| | Compute the statistics for temporal point columns (callback function) More...
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