[pgpool-committers: 9972] pgpool: Fix dynamic process management.

[Tatsuo Ishii]

Fix dynamic process management.

Calculation of pooled_connection, which is used by the process
eviction algorithm, was not correct. The number always resulted in
max_pool. Also more comments are added.

Discussion:  [pgpool-hackers: 4490] Issue with dynamic process management
https://www.pgpool.net/pipermail/pgpool-hackers/2024-July/004491.html
Backpatch-through: master, 4.5, 4.4

Branch
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V4_5_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=883be2eda2e84d89bedd73f73f04aaa4cb6e7c43

Modified Files
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src/protocol/child.c                | 5 +++++
src/protocol/pool_connection_pool.c | 9 +++++++--
2 files changed, 12 insertions(+), 2 deletions(-)