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1 ============
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2 Design Notes
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3 ============
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4
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5 These design notes will hopefully not be necessary for routine use
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6 of sqlpython; they describe implementation details intended to be
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7 transparent to the user. However, if you get involved in developing
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8 or debugging - or if something goes wrong (which it sometimes will) -
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9 this information may be of interest.
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10
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11 Pickled metadata
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12 ----------------
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13
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14 sqlpython relies on Gerald to collect metadata, and this collection
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15 takes some time. When a database connection is made, a Gerald
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16 connection is initiated; to provide preliminary metadata before that
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17 Gerald collection is complete, sqlpython looks for a picklefile
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18 storing metadata collected during an earlier session. When the fresh
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19 metadata collection is complete, it is stored in pickled form for the
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20 next session.
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23
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