Sql 做问题是，我没有将绑定参数传递给准备好的参数！：我现在很尴尬，我把这件事搞了好几个小时，以前我都没发现。很抱歉浪费了你的时间，至少你让我找到了问题的根源。 CREATE TABLE "pt_postal" ( "code&

做问题是，我没有将绑定参数传递给准备好的参数！：我现在很尴尬，我把这件事搞了好几个小时，以前我都没发现。很抱歉浪费了你的时间，至少你让我找到了问题的根源。

CREATE TABLE "pt_postal" (
  "code" text NOT NULL,
  "geo_latitude" real(9,6) NULL,
  "geo_longitude" real(9,6) NULL
);

CREATE UNIQUE INDEX "pt_postal_code" ON "pt_postal" ("code");
CREATE INDEX "coordinates" ON "pt_postal" ("geo_latitude", "geo_longitude");

$db->sqliteCreateFunction('geo', function ()
{
    if (count($data = func_get_args()) < 4)
    {
        $data = explode(',', implode(',', $data));
    }

    if (count($data = array_map('deg2rad', array_filter($data, 'is_numeric'))) == 4)
    {
        return round(6378.14 * acos(sin($data[0]) * sin($data[2]) + cos($data[0]) * cos($data[2]) * cos($data[1] - $data[3])), 3);
    }

    return null;
});

SELECT
    "code",
    geo(38.73311, -9.138707, "geo_latitude", "geo_longitude") AS "distance"
    FROM "pt_postal" WHERE 1 = 1
        AND "geo_latitude" BETWEEN 38.7241268076 AND 38.7420931924
        AND "geo_longitude" BETWEEN -9.15022289523 AND -9.12719110477
        AND "distance" <= 1
    ORDER BY "distance" ASC
LIMIT 2048;

AND "geo_latitude" BETWEEN 38.7241268076 AND 38.7420931924
AND "geo_longitude" BETWEEN -9.15022289523 AND -9.12719110477

SEARCH TABLE pt_postal USING INDEX coordinates (geo_latitude>? AND geo_latitude<?)
#(~7500 rows)
USE TEMP B-TREE FOR ORDER BY

SCAN TABLE pt_postal
#(~500000 rows)
USE TEMP B-TREE FOR ORDER BY

SELECT
    "code",
    geo(38.73311, -9.138707, "geo_latitude", "geo_longitude") AS "distance"
    FROM "pt_postal" WHERE 1 = 1
        AND "geo_latitude" BETWEEN 38.7241268076 AND 38.7420931924
        AND "geo_longitude" BETWEEN -9.15022289523 AND -9.12719110477
        AND geo(38.73311, -9.138707, "geo_latitude", "geo_longitude") <= 1
    ORDER BY "distance" ASC
LIMIT 2048;

SELECT *
    FROM (
        SELECT
            "code",
            geo(38.73311, -9.138707, "geo_latitude", "geo_longitude") AS "distance"
            FROM "pt_postal" WHERE 1 = 1
                AND "geo_latitude" BETWEEN 38.7241268076 AND 38.7420931924
                AND "geo_longitude" BETWEEN -9.15022289523 AND -9.12719110477
    )
        WHERE "distance" <= 1
    ORDER BY "distance" ASC
LIMIT 2048;

SELECT
    "code",
    geo(38.73311, -9.138707, "geo_latitude", "geo_longitude") AS "distance"
    FROM "pt_postal" WHERE 1 = 1
        AND "geo_latitude" BETWEEN 38.7241268076 AND 38.7420931924
        AND "geo_longitude" BETWEEN -9.15022289523 AND -9.12719110477
    GROUP BY "code"
        HAVING "distance" <= 1
    ORDER BY "distance" ASC
LIMIT 2048;

SELECT
    "code",
    geo(38.73311, -9.138707, "geo_latitude", "geo_longitude") AS "distance"
    FROM "pt_postal" WHERE 1 = 1
        AND "geo_latitude" BETWEEN 38.7241268076 AND 38.7420931924
        AND "geo_longitude" BETWEEN -9.15022289523 AND -9.12719110477
    GROUP BY _ROWID_
        HAVING "distance" <= 1
    ORDER BY "distance" ASC
LIMIT 2048;

SELECT "code",
    geo(38.73311, -9.138707, "geo_latitude", "geo_longitude") AS "distance"
    FROM "pt_postal" WHERE 1 = 1
        AND "geo_latitude" BETWEEN 38.7241268076 AND 38.7420931924
        AND "geo_longitude" BETWEEN -9.15022289523 AND -9.12719110477
        AND "distance" <= 1
    ORDER BY "distance" ASC
LIMIT 2048;