2015-07-01 22:01:50 +08:00
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Return pixel resolution of tiles at a given zoom level
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#### Using the function
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Take a common tile with zoom, z=2,
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To determine the resolution of these pixels,
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```sql
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SELECT CDB_XYZ_Resolution(2)
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--- Returns a float, 39135.7587890625
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```
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2015-07-01 22:03:13 +08:00
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#### Arguments
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2015-07-01 22:01:50 +08:00
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CDB_XYZ_Resolution(z)
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* **z** integer
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